File: ChangeLog

package info (click to toggle)
libqalculate 0.9.7-8
  • links: PTS
  • area: main
  • in suites: wheezy
  • size: 8,308 kB
  • sloc: cpp: 40,541; sh: 9,291; makefile: 64
file content (2399 lines) | stat: -rw-r--r-- 79,014 bytes parent folder | download | duplicates (4)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2009-01-05 Jonathan Stickel <jjstickel@vcn.com>

	* General build updates and bug fixes, including the ability to
	build against cln >= 1.2.
	* Bug fix for segfaults with some uses of integrate() (bug 2537772).

2008-03-17 Niklas Knutsson  <nq@altern.org>

	* Fix reduction of vector size. Fixes bug 1913388.

2007-08-27 Niklas Knutsson  <nq@altern.org>

	* Begin work on propagation of uncertainties
	* Allow parentheses for vectors (a bit stricter parsing)
	* brackets_as_parentheses parse option

2007-08-23 Niklas Knutsson  <nq@altern.org>

	* 2/5m = 2/(5m); 2/5 m = (2/5)*m

2007-08-22 Niklas Knutsson  <nq@altern.org>

	* Make DataSet::calculate virtual
	* dataset.object.property and object.property (with parse_options.default_dataset set) syntax

2007-08-21 Niklas Knutsson  <nq@altern.org>

	* Fix crash with unsupported operator in RPN syntax (bug 1778267)

2007-08-07 Niklas Knutsson  <nq@altern.org>

	* New Simplified Chinese translation (Roy Qu <royqh1979@gmail.com>)

2007-06-17 Niklas Knutsson  <nq@altern.org>

	* Miscellaneous fixes before release

2007-04-27 Niklas Knutsson  <nq@altern.org>

	* New functions: addTime(), isNumber(), isReal(), isRational(), isInteger(),
	  representsNumber(), representsReal(), representsRational(), representsInteger()
	* Show argument name instead of \x in argument condition

2007-04-26 Niklas Knutsson  <nq@altern.org>

	* Use Lambert W to solve equations
	* Fix infinite loop when solving some equations
	* New functions: addDays(), addMonths(), addYear()

2007-04-19 Niklas Knutsson  <nq@altern.org>

	* Enhance lambertw()
	* Add the Omega constant

2007-04-18 Niklas Knutsson  <nq@altern.org>

	* Implement the Lambert W function

2007-04-17 Niklas Knutsson  <nq@altern.org>

	* Avoid floating point underflow by, in approximate mode, 
	  checking against the value of pi in sin() and cos()
	* Add more exact values for sin() and cos()

2007-04-15 Niklas Knutsson  <nq@altern.org>

	* Fix simplification of (1-1/x)^3 and similar

2007-03-31 Niklas Knutsson  <nq@altern.org>

	* Add grams of TNT (gTNT/gramTNT) and tons of TNT (tTNT/tonTNT) units

2007-03-29 Niklas Knutsson  <nq@altern.org>

	* Fix parsing of unit expressions (when converting) such as W/(m K)
	* Expand data on elements

2007-03-20 Niklas Knutsson  <nq@altern.org>

	* Fix clumsy mistakes in setPrefixes() leading to crashes
	* Add typographic units
	* Add some old french length units
	* Add alternative name "variations" for permutations
	* Fix atomic mass unit being put in second density category

2006-12-16 Niklas Knutsson  <nq@altern.org>

	* New French translation (Nicolas Laug <Nicolas.Laug@polymtl.ca>)

2006-11-18 Niklas Knutsson  <nq@altern.org>

	* Update Swedish translation

2006-11-07 Niklas Knutsson  <nq@altern.org>

	* Update Dutch translation (Jaap Woldringh <jjh.woldringh@planet.nl>)

2006-11-02 Niklas Knutsson  <nq@altern.org>

	* Use "name := value" as shortcut for save(value; name)
	* Return value in save()

2006-09-10 Niklas Knutsson  <nq@altern.org>

	* Group integer factors in powers

2006-09-05 Niklas Knutsson  <nq@altern.org>

	* Integer factorization
	* Heaviside Step Function, Rectangular Function, Triangular Function, and Ramp Function
	* Kronecker Delta, Sigmoid, and Logit Transformation

2006-08-18 Niklas Knutsson  <nq@altern.org>

	* Generate API docs from autogen.sh
	* Radius instead of diameter as argument for circumference()

2006-07-21 Niklas Knutsson  <nq@altern.org>

	* Interpret 0x[0-9,a-f] as hexadecimal number (do not require first digit to be 0-9)

2006-07-03 Niklas Knutsson  <nq@altern.org>

	* Add optional upper and lower limit arguments to integrate() for definite integrals
	* Add cross() function
	* Handle powers with multiplication as base when setting prefixes
	* Split powers with units when placing units separately
	* Increment version number

2006-06-21 Niklas Knutsson  <nq@altern.org>

	* Fix parsing of "x!)!"
	* Use Julian year for light-year value

2006-06-20 Niklas Knutsson  <nq@altern.org>

	* Use "Display units separately" also for quantities with multiple terms

2006-06-10 Niklas Knutsson  <nq@altern.org>

	* Add base 3 exponent mode
	* Add "Engineering" display mode

2006-06-06 Niklas Knutsson  <nq@altern.org>

	* Unevaluated arguments were used when checking for numerical arguments in
	   logn(), which caused log2(16/2) to first be evaluated to ln(16/2)/ln(2).

2006-06-01 Niklas Knutsson  <nq@altern.org>

	* Polishing before 0.9.4 release

2006-05-18 Niklas Knutsson  <nq@altern.org>

	* Fix libqalculate.so unresolved symbols with patch from 
	  Thomas de Grenier de Latour, add GLIB_LIBS to LIBADD

2006-05-09 Niklas Knutsson  <nq@altern.org>

	* Add additional localization options for use in KDE GUI

2006-05-03 Niklas Knutsson  <nq@altern.org>

	* Update API documentation
	* Clean up Unit API
	* More function descriptions
	* tetrahedron(), tetrahedron_sa(), tetrahedron_height(), sqpyramid(), sqpyramid_sa() and sqpyramid_height() functions
	* Do not update the stack until the calculation is finished
	* stack() and register() functions
	* Add true RPN mode to qalc
	* Add "rpn", "stack" and "clear stack" commands, and "lowercase e", "lowercase numbers", "spell out logical", "dot as separator"
	   and "rpn" set command options in qalc
	* Update Swedish translation

2006-04-28 Niklas Knutsson  <nq@altern.org>

	* Update API documentation
	* equation => formula in MathFunction
	* Do less in setFormula() if formula is empty

2006-04-27 Niklas Knutsson  <nq@altern.org>

	* Fix parsed expression for RPN operation
	* Remove capitalization from argument titles

2006-04-24 Niklas Knutsson  <nq@altern.org>

	* Fix bug #1475373 ("1 kg m/s" was simplified to "1000 m/s")

2006-04-23 Niklas Knutsson  <nq@altern.org>

	* README.translate with information for translators
	* Update Swedish translation

2006-04-22 Niklas Knutsson  <nq@altern.org>

	* Prepend !category! to strings, which might have different translations in different contexts, in data files

2006-04-21 Niklas Knutsson  <nq@altern.org>

	* Add the completed Dutch translation
	* New name format in data files
	* Update Dutch translation to new name format

2006-04-13 Niklas Knutsson  <nq@altern.org>

	* Fix horrible, horrible bug that caused all number arguments to require numbers to be rational

2006-04-09 Niklas Knutsson  <nq@altern.org>

	* Ignore definition names beginning with colon, for plural names where the original name does not differ
	* Set vectors and matrices as the first argument by default
	* Add more function descriptions

2006-04-08 Niklas Knutsson  <nq@altern.org>

	* Options to use dot as thousands separator when it is not the default decimal sign
	* require_translation property for definitions, used in the large numbers category

2006-04-06 Niklas Knutsson  <nq@altern.org>

	* Update RPN functions
	* Update API documentation
	* Change usecs argument to msecs

2006-04-04 Niklas Knutsson  <nq@altern.org>

	* Plugins
	* True RPN mode

2006-04-03 Niklas Knutsson  <nq@altern.org>

	* Set min and max in argument definition for zeta()
	* Set exact value for zeta with argument 2, 4, 6, 8 or 10 and set infinity for 1

2006-04-02 Niklas Knutsson  <nq@altern.org>

	* Symmetric matrix => Square matrix
	* Some text string changes
	* Accept vectors in elements function

2006-04-01 Niklas Knutsson  <nq@altern.org>

	* Interpret 0x..., 0o... and 0b... as hexadecimal, octal and binary numbers, respectively, when base is decimal

2006-03-29 Niklas Knutsson  <nq@altern.org>

	* Remove deleted data set from the data set list, not only the function list (fix crash on delete and update list view)

2006-03-28 Niklas Knutsson  <nq@altern.org>

	* Fix contains... functions (and thereby integration)

2006-03-25 Niklas Knutsson  <nq@altern.org>

	* Ignore commas in numbers
	* Start API documentation

2006-03-13 Niklas Knutsson  <nq@altern.org>

	* Approximate comparison fixes
	* Add PrintOptions->restrict_to_parent_precision (default true)
	* Do not produce a result with multiplications inside multiplications (fixes prefixes with simplification)

2006-02-26 Niklas Knutsson  <nq@altern.org>

	* Approximate comparison
	* Avoid floating point overflow and underflow by not lowering precision in comparison
	  and always using long floats
	* Use floating point raise more often in approximate mode

2006-02-21 Niklas Knutsson  <nq@altern.org>

	* Fix show ending zeroes when max decimals is set to off by a max value below zero

2006-02-11 Niklas Knutsson  <nq@altern.org>

	* Do not use "Read Precision" in plot

2005-01-30 Niklas Knutsson  <nq@altern.org>

	* isodate(), localdate(), timestamp(), stamptodate() functions

2005-01-27 Niklas Knutsson  <nq@altern.org>

	* cos(x*pi*rad) equals 1 if x is even, not -1

2005-12-20 Niklas Knutsson  <nq@altern.org>

	* Warn about denominators assumed non-zero option

2005-12-19 Niklas Knutsson  <nq@altern.org>

	* Various fixes and enhancements
	* Update Swedish translation

2005-12-14 Niklas Knutsson  <nq@altern.org>

	* Fix ln(e^x)
	* Isolate x in log(x) for inequalities
	* Factorize x^2-y^2 and x^3-y^3

2005-12-13 Niklas Knutsson  <nq@altern.org>

	* Isolate x fixes
	* Fix merging of common factor with multiplication

2005-12-12 Niklas Knutsson  <nq@altern.org>

	* Assume that simple unit relations do not negate	
	* Fix ?+(+infinity)

2005-12-11 Niklas Knutsson  <nq@altern.org>

	* Fix non-commutative multiplication (multiplication with possible matrices)

2005-12-09 Niklas Knutsson  <nq@altern.org>

	* Fix isolate x with "x^2 > -5" and similar
	* Do not calculate y in "x && y" and "x || y" if x is false or true, respectively

2005-12-08 Niklas Knutsson  <nq@altern.org>

	* New assumption type "non-matrix" for unknowns with commutative multiplication
	* Finish isolate x / solve changes

2005-12-06 Niklas Knutsson  <nq@altern.org>

	* Isolate x and solve fixes
	* Fix matrix multiplication

2005-12-04 Niklas Knutsson  <nq@altern.org>

	* Isolate x updates
	* Put AND within OR (to get nicer inequalities)

2005-12-03 Niklas Knutsson  <nq@altern.org>

	* Isolate x using AND and OR instead of vector
	* Enhanced inequalities handling in isolate x
	* Simplify AND and OR with comparisons (ex x < 5 && x < 3 = x < 3)
	* Display "x < 3 && x > 1" as "1 < x < 3"

2005-12-01 Niklas Knutsson  <nq@altern.org>

	* Incorporate ginac sqrfree updates between version 1.2.3 and 1.3.3
	* Assorted fixes

2005-11-30 Niklas Knutsson  <nq@altern.org>

	* Only treat e as E if preceded by number
	* Do not test float number for infinite series
	* Check factorized numerators and denominators for negative powers

2005-11-29 Niklas Knutsson  <nq@altern.org>

	* Parse -x/y as (-x)/y instead of -(x/y)
	* Print multiplication in negation with parentheses when excessive parentheses is on
	* Do not display (x)(y)^z with multiplication sign
	* Sort x^2*y^3 + 10xy - 3x + 8 instead of x^2*y^3 - 3x + 10xy + 8

2005-11-28 Niklas Knutsson  <nq@altern.org>

	* Updated function arguments parsing ignoring space after function name and not stopping parsing of
	  single argument without parentheses until space or right parenthesis without corresponding left parenthesis
	* Be more strict with 0/x if x is not non-zero
	* Fix 1E-1 = 1e-1
	* Calculate as float when 1.0001 > base < 0.9999 and exponent is greater than 10000 or less than -10000

2005-11-27 Niklas Knutsson  <nq@altern.org>

	* Unknown variable with sign non-negative or non-positive represents real number
	* Update assumption type after setting sign and vice versa
	* Assume again when dividing that units do not convert to zero
	* "Einstein per Meter per Second" => "Einstein per Meter Squared per Second"

2005-11-26 Niklas Knutsson  <nq@altern.org>

	* Be more restrictive with unknown variables/symbols with unknown type (might be unit or vector)

2005-11-25 Niklas Knutsson  <nq@altern.org>

	* Update qalc with new factorization and some more
	* Option for qalc to read commands from a file first
	* Fix unit comparisons
	* Fix handling of units with function in relation saved in approximate variable

2005-11-24 Niklas Knutsson  <nq@altern.org>

	* Sort out some power transformations

2005-11-23 Niklas Knutsson  <nq@altern.org>

	* More fixes (I'm not very good at keeping track of them)

2005-11-22 Niklas Knutsson  <nq@altern.org>

	* Preserve factorization print option (for (3/4*(x+1))/(y+1))

2005-11-21 Niklas Knutsson  <nq@altern.org>

	* Lots of evaluation and factorization fixes
	* Pass parent to some functions so the reference can be replaced for the whole child
	* New MathStructure sorting algorithm using the fact that the structure usually already is well sorted,
	  reducing the time to factorize (x+y)^50 to a third

2005-11-19 Niklas Knutsson  <nq@altern.org>

	* Add rational polynomial parameter to arguments
	* Add rational number parameter to number arguments
	* Add polynomial functions -- coeff(), lcoeff(), pcontent(), degree(), etc.
	* Fix lcoefficient (confused by l in ldegree mening low and l in coefficient leading)
	* A more efficient differentiate function for sqrfree

2005-11-18 Niklas Knutsson  <nq@altern.org>

	* Fixes
	* Determinant from GiNaC
	* Only use the new inverse function for numeric matrices

2005-11-17 Niklas Knutsson  <nq@altern.org>

	* "borrow" sqrfree factorization and related functions from GiNaC
	* Make evaluation more efficient (avoid recalculations)

2005-11-10 Niklas Knutsson  <nq@altern.org>

	* MathStructure gcd() and lcm()
	* New simplification using factorization and factorization combing denominators
	* Increment library soname number (QALCULATE_CURRENT)

2005-11-07 Niklas Knutsson  <nq@altern.org>

	* Much more efficient determinant calculation
	* Fix x*y^-1*y^-1+x*y^-1
	* Fix cases when (x-1)^-1*(x-1)^-1 not returned (x-1)^-2
	* Much more efficient inverse matrix calculation

2005-11-06 Niklas Knutsson  <nq@altern.org>

	* Use quotient rule in differentation to possible get simpler results then if always using the product rule
	* Fix fetching of exchange rates with gnome-vfs < 2.10
	* Fix display of fractions in fractional mode "Decimal (Try Exact)" 
	* Differentiation fixes
	* Do unicode stuff correctly (a sequence of unicode characters was sometimes counted as one)

2005-11-05 Niklas Knutsson  <nq@altern.org>

	* Fix (x+1)/x (= 1 + 1/x)
	* Simplification by combining divisions
	* Reversed polynomial division (ex. (x+1)/(x^2+2x+1) = 1/(x+1))

2005-11-04 Niklas Knutsson  <nq@altern.org>

	* Compile without warnings with -pedantic and -Wextra

2005-11-03 Niklas Knutsson  <nq@altern.org>

	* Fix simplification of (ax^b+cx^d)/x
	* Fix (xy/z)+1/z
	* Fix suggested multiplication sign before and after power

2005-11-02 Niklas Knutsson  <nq@altern.org>
	
	* More parse polishing
	* Fix for cln-1.1.10 and remove all "obfuscating" cln operators
	* Builtin function's represents...() was not used because of missing const in declaration

2005-10-31 Niklas Knutsson  <nq@altern.org>

	* Cleaner parsing (same result but looks nicer)

2005-10-30 Niklas Knutsson  <nq@altern.org>

	* Add metre/metres for meter/meters
	* nounit() function

2005-10-29 Niklas Knutsson  <nq@altern.org>

	* Fix Kibit interpretation (was kibitonne, is now kibibit) and similar
	* Update setting of parsed structure and to expression in calculate function
	* Update qalc

2005-10-28 Niklas Knutsson  <nq@altern.org>

	* Option to reduce transformation when parsing and print formating
	* Support for binary and other prefixes
	* Information units (bit, byte, etc.) and binary prefixes
	* Neper and Bel units

2005-10-26 Niklas Knutsson  <nq@altern.org>

	* Update Swedish translation
	* light_year => lightyear
	* Fix unended function information when optional arguments

2005-10-22 Niklas Knutsson  <nq@altern.org>

	* Add SIGN_SMALLCIRCLE and SIGN_MULTIBULLET to utf8_pos_is_valid_in_name to fix completion

2005-10-21 Niklas Knutsson  <nq@altern.org>

	* Lots of new units

2005-10-20 Niklas Knutsson  <nq@altern.org>

	* Only give "Error in unit expression" message on errors in CompositeUnit parsing
	* Do not accumulate the error count between levels for temporary stop messages

2005-10-19 Niklas Knutsson  <nq@altern.org>

	* Add arguments past max arguments to unended_function

2005-10-18 Niklas Knutsson  <nq@altern.org>

	* Put seperation of unit expression to string in calculate function in a separate function
	* Add stopped warnings count

2005-10-17 Niklas Knutsson  <nq@altern.org>

	* Print option to hide underscores (if not for suffix) in names
	* Adjust precision of constants

2005-10-16 Niklas Knutsson  <nq@altern.org>

	* Add unended_function to parse_options and put unended function there when parsing

2005-10-15 Niklas Knutsson  <nq@altern.org>

	* mmHg unit
	* Ideal Gas Constant

2005-10-13 Niklas Knutsson  <nq@altern.org>

	* Fortnight unit
	* More composite units for convenience
	* Foot-Candle unit
	* Fix conversion footcandle <-> lux
	* Einstein unit

2005-10-11 Niklas Knutsson  <nq@altern.org>

	* More composite units for convenience (km, mm, ml, km/h, etc.)

2005-10-08 Niklas Knutsson  <nq@altern.org>

	* Move currency definitions to currencies.xml
	* Functions for loading sepearate global definitions files
	* Create angle units if not loaded from definitions files

2005-10-05 Niklas Knutsson  <nq@altern.org>

	* Do not create qalculate symlink to qalc (confusing when installing GUI in other location)
	* Use gnomevfs-copy instead of wget if available
	* Allow user to specify wget arguments
	* Update currencies

2005-09-21 Niklas Knutsson  <nq@altern.org>

	* mph and mpg units

2005-08-21 Niklas Knutsson  <nq@altern.org>

	* Fix (1/2)^n < 0.5
	* Fix replacement of unicode signs when skipping quotes
	* Fix 0 oC to oF (0*unit != 0)

2005-06-11 Niklas Knutsson  <nq@altern.org>

	* Remove requirement glib-2.0 >= 2.4 and require libxml2 >= 2.3.8
	* Do not let << take precedence over >> read from left to right

2005-06-10 Niklas Knutsson  <nq@altern.org>

	* Do not use unicode prefix names for long names
	* xor() and bitxor() is NOT algebra
	* Add even() and odd() functions
	* shift() function and operators ("<<" and ">>")
	* Add functins for getting exchange rates url and file name to allow interface to do the downloading themselves

2005-06-09 Niklas Knutsson  <nq@altern.org>

	* Support for "e" instead of "E" in result

2005-06-07 Niklas Knutsson  <nq@altern.org>

	* SIGN_POWER_1, ... => "^(1)", ... instead of "^1", ...

2005-06-06 Niklas Knutsson  <nq@altern.org>

	* Update Swedish translation

2005-06-05 Niklas Knutsson  <nq@altern.org>

	* Reminder => Remainder
	* Reminder (mod) => Modulus
	* Bitwise NOT (~)
	* xor() and bitXor()
	* Clean up expression such (x && y) > 0
	* Update currencies (more added)
	* Warn the use that objects with '~' in name will be lost
	* Keep loading/saving after error
	* Do not crash when saving data sets (initialize cat_i_prev)
	* Do not load nameless objects

2005-06-02 Niklas Knutsson  <nq@altern.org>

	* Bitwise AND (&), OR (|), XOR
	* Remove old giac stuff

2005-06-01 Niklas Knutsson  <nq@altern.org>

	* Non-static getElement() function
	* Initialize saved_locale before use

2005-05-15 Niklas Knutsson  <nq@altern.org>

	* Max values seem to have been lost a long time ago -- add them again

2005-05-07 Niklas Knutsson  <nq@altern.org>

	* Initialize ids_i
	* Fix documentation typos
	* Fix includes.h for gcc-4.0

2005-03-06 Niklas Knutsson  <nq@altern.org>

	* 5e2 = 5E2 = 500 and 5e = 5*e

2005-02-08 Niklas Knutsson  <nq@altern.org>
	
	* Update solve2()

2005-02-06 Niklas Knutsson  <nq@altern.org>

	* Dialog with buttons works in gtk+-2.6.2
	* Do not look at function arguments in contains... functions

2005-02-02 Niklas Knutsson  <nq@altern.org>

	* Update integration and differentiation (sin(x) != sin(x)*rad) after change in sin() and cos() behaviour

2005-01-25 Niklas Knutsson  <nq@altern.org>

	* Fix RPN crash and don't add lonely stack value to itself
	* Workaround freeze with message dialog without buttons

2005-01-24 Niklas Knutsson  <nq@altern.org>

	* Use the last operator for leftover stack values

2004-11-30 Niklas Knutsson  <nq@altern.org>

	* Show base (if not decimal, hexadecimal or non-standard) as subscript

2004-11-26 Niklas Knutsson  <nq@altern.org>

	* Fix "Convert result" button
	* Use singular instead of abbreviated name for completion

2004-11-21 Niklas Knutsson  <nq@altern.org>
	
	* Fix draw unit
	* Add alternative multiplication dot signs
	* Enhance preferences safety

2004-11-16 Niklas Knutsson  <nq@altern.org>
	
	* Check if unicode characters can be displayed

2004-11-10 Niklas Knutsson  <nq@altern.org>

	* Revert back somewhat to the old behaviour of not rounding exact numbers not in exponential format 

2004-10-25 Niklas Knutsson  <nq@altern.org>

	* Generate vector function

2004-10-24 Niklas Knutsson  <nq@altern.org>

	* Rearrange plot dialog
	* Do not update plot data when not changed
	* Make x variable separate for each plot function

2004-10-22 Niklas Knutsson  <nq@altern.org>

	* Fix angle arguments by adding option default angle unit none where angle units must be specified
	* Represents... for some functions
	* Some tweaks

2004-10-21 Niklas Knutsson  <nq@altern.org>

	* Fix 0.5!

2004-10-20 Niklas Knutsson  <nq@altern.org>

	* Fix comparison of unit with unknown
	* Try with assumptions set to unknown in solve function if not successful

2004-10-19 Niklas Knutsson  <nq@altern.org>
	
	* Fix when size_t not is unsigned int

2004-10-17 Niklas Knutsson  <nq@altern.org>

	* Disable plural forms not at the end of text strings (metersqrt(5) = meter * sqrt(5) instead of meters * qrt(5))
	* Replace new lines with &#10; in definition xml files until we have a better solution

2004-10-14 Niklas Knutsson  <nq@altern.org>

	* Speed-up csum when component(i, "v") is used
	* Give messages in the right order (reversed)
	* Update obsolete plot documentation
	* Clean up parsing
	* Add limit implicit multiplication mode
	* Fix unit conversion
	* Fix m*s -> 1 m*s

2004-10-13 Niklas Knutsson  <nq@altern.org>

	* More speed-ups

2004-10-12 Niklas Knutsson  <nq@altern.org>

	* Limit qalc history to 100 entries
	* Increase qalculate-gtk history to 25 entries
	* Store children i math structures as pointers to reduce copying of large vectors

2004-10-11 Niklas Knutsson  <nq@altern.org>

	* Help buttons in variable edit, unit edit, function edit and plot dialogs
	* Make definitions loading more than twice as fast
	* -set command line option for qalc

2004-10-10 Niklas Knutsson  <nq@altern.org>

	* defs2doc program for generation of definition list in help
	* Make help book and add appendix for lists of functions, variables and units
	* Fix broken CVS

2004-10-09 Niklas Knutsson  <nq@altern.org>

	* promille -> permille
	* Permille sign
	* permyriad
	* Fix atan() ignoring angle unit
	* Add exact value for atan(1) = 1/4 pi and atan(-1) = -1/4 pi

2004-10-08 Niklas Knutsson  <nq@altern.org>

	* Install headers
	* Added pkgconfig file libqalculate.pc
	* Remove inclusion of config.h in installed headers
	* Include library headers with <libqalculate/*.h>
	* Rename src/calclib src/libqalculate

2004-10-07 Niklas Knutsson  <nq@altern.org>

	* Update exchange rates command in qalc
	* Update Swedish translation
	* Add last set options to qalc
	* Allow user to type - when unicode signs is disabled
	* Division sign selection
	* Use selected multiplication and division sign in text printing

2004-10-06 Niklas Knutsson  <nq@altern.org>

	* Fix qalc Ctrl+D crash (exit when read line is NULL)
	* Do not require two tabs to show completion list
	* Do not show all output directly if terminal is too small
	* Split out localization of definitions into po-defs
	* Add full support for non-utf8 local characters in qalc
	* Various qalc tweaks

2004-10-05 Niklas Knutsson  <nq@altern.org>

	* Fix equalsIgnoreCase() for unicode chars and make more efficient
	* Make qalc case insensitive and add extend localization
	* Change package name to qalculate

2004-10-04 Niklas Knutsson  <nq@altern.org>

	* Use readline for qalc
	* Change class Function to MathFunction
	* Only use plural name when short multiplication
	* qalc completion
	* Autoconf updates -- make compilation of qalc and qalculate-gtk optional as well as readline
	* qalc save variable, set assumptions, and more

2004-10-03 Niklas Knutsson  <nq@altern.org>

	* Ask if exchange rates shall be downloaded the first qalculate run
	* Number base 1 makes no sense
	* More work on qalc

2004-10-02 Niklas Knutsson  <nq@altern.org>

	* Change n for micro to u
	* Command line program "qalc"
	* Get rid of traces of separate angle unit variable

2004-10-01 Niklas Knutsson  <nq@altern.org>

	* Add filter to save result to image file dialog
	* Install libqalculate as a shared library

2004-09-30 Niklas Knutsson  <nq@altern.org>

	* Alternative to use step size instead of sampling rate for generation of plot data
	* Big approximate and precision check and fix
	* Message about the limited functionality of the gamma function

2004-09-29 Niklas Knutsson  <nq@altern.org>

	* Gamma for rational numbers with denominator 2
	* Double and multi factorials
	* Tweak parsing of !-factorials 
	* Modify CLN error message
	* hyperfactorial() and superfactorial()
	* Make factorials more efficient by using CLN numbers directly

2004-09-28 Niklas Knutsson  <nq@altern.org>

	* Allow arguments to only be used in sub functions
	* Remove countArgOccurence() as it is not needed any more
	* Drop support for gtk+ < 2.4
	* Fix large integers displayed inexact was reported as exact
	* Stop gamma() if argument is not an integer
	* Read precision from zero with decimals (0.000...)
	* Set precision from function and its arguments after function calculation

2004-09-27 Niklas Knutsson  <nq@altern.org>

	* "Inverse" -> "Matrix Inverse"
	* Fix isolate_x() when comparison type is not equals
	* Make plot non-numerical error more informative and include non-reals
	* No use to have if() arguments as text, as they now only are parsed initially
	* Fix trimmean() and winsormean()
	* Localize "timed out"
	* Version 0.6.4

2004-09-26 Niklas Knutsson  <nq@altern.org>

	* Fix selection of variable to solve
	* New solve2() function
	* New multisolve() function
	* Do not add modified data object once more
	* Do not check against new data objects for duplicates
	* Get a default name for new vector/matrix just as with other known variables
	* Display error when plot data contains non-numerical values
	* Show function condition in function description
	* Update Swedish translation
	* We need to sort fully recursively before merging factors in factorize()
	* Fix factorization with duplicate factor with a in (ax+b) greater than one
	* Add new expression to expression history after set unknowns
	* Use g_find_program_in_path() to check if gnuplot and wget is available to avoid terminal output

2004-09-25 Niklas Knutsson  <nq@altern.org>

	* unitedit_glade was used in variable dialogs
	* Use factorization in isolate_x()
	* Improve isolate_x()
	* Check if terms is equal (or a = -b) with the current precision in subtract and add to be able to find very small numbers that really are zero
	* isolate_x() fixes
	* Preserve evaluation options through factorization

2004-09-24 Niklas Knutsson  <nq@altern.org>

	* Include both "liter" and "litre" to avoid confusion
	* Add "tonne" for metric ton
	* Prefer keeping the original unit if equally good when converting to best unit
	* Merge infinite numbers with somewhat known structures
	* Be a bit more strict with undefined values
	* Ohm and farad are SI units

2004-09-23 Niklas Knutsson  <nq@altern.org>

	* Increase space after imaginary i by 1
	* Fix never ending loop in getBestPrefix()
	* Fix (2x)/(5(yz)) --> (2x)/(5yz)
	* Take into account place_units_separately in improve_division_multipliers()
	* Increase space at end of parenthesis by 1
	* Change components() to dimension()
	* Set correl() as a different name for pearson() instead of a separate function
	* Check that the dimension of vectors is equal in pearson() and spearman()
	* Test if polynomial division reduces the size of the expression
	* Stop after editing data set from edit function function
	* Tweak data set info printing removing tabs
	* Save Image -> Save Image...

2004-09-22 Niklas Knutsson  <nq@altern.org>

	* Fix data object edit option menu
	* Do not show error when global data file cannot be loaded for local data set
	* Update data property list also when the data set is new
	* Fix setting data set function name
	* Set default argument names for data set when entries are empty
	* Do not delete original property and add new -- set original with new to not invalidate references in objects
	* Position progress dialog center parent, and set unknowns and convert to unit expression under mouse
	* Once again, fix prefix selection when prefix is first before/after zero

2004-09-21 Niklas Knutsson  <nq@altern.org>

	* Rational factorization of higher degree polynomials

2004-09-20 Niklas Knutsson  <nq@altern.org>

	* Some result display tweaks
	* Update function titles and argument names
	* Update Swedish translation
	* Update documentation
	* Print quotation marks for symbolic structures when not allow unusable
	* Display e*e^x with multiplication sign

2004-09-19 Niklas Knutsson  <nq@altern.org>

	* Full factorization of quadratic polynomials
	* Transform sqrt(8) to 2*sqrt(2) (and similar) in exact mode
	* Fix xy-xy=xy !!!
	* Fix repeated apply in unknowns dialog

2004-09-18 Niklas Knutsson  <nq@altern.org>

	* Updated result sorting
	* (-x-y)/z --> -(x+y)/z

2004-09-17 Niklas Knutsson  <nq@altern.org>

	* Set unknowns dialog
	* More refined selection of popup menu items to show
	* Polynomial division
	* More reliable internal sorting

2004-09-16 Niklas Knutsson  <nq@altern.org>

	* Extensive enhancements of symbolic division
	* Alternative to assume that unknown denominators are non-zero

2004-09-12 Niklas Knutsson  <nq@altern.org>

	* Ex. 1/(x+10)=5, test if x+10 is zero after solve

2004-09-11 Niklas Knutsson  <nq@altern.org>

	* Evaluation options was not always preserved when converting to best units
	* Display x^(5/2) as x^2*sqrt(x)

2004-09-10 Niklas Knutsson  <nq@altern.org>

	* Internal sorting fixes
	* Update documentation
	* Update Swedish translation
	* Use displayed name when sorting

2004-09-09 Niklas Knutsson  <nq@altern.org>

	* Make factorization more functional

2004-09-08 Niklas Knutsson  <nq@altern.org>

	* Integration fixes
	* Use representsNonZero() for arguments that must be non-zero

2004-09-07 Niklas Knutsson  <nq@altern.org>

	* "times", "plus", "minus", "per", "AND", "OR"

2004-09-06 Niklas Knutsson  <nq@altern.org>

	* Finish GUI and user modifications for data sets

2004-09-01 Niklas Knutsson  <nq@altern.org>

	* rm -f qalculate; $(LN_S) qalculate-gtk qalculate

2004-08-28 Niklas Knutsson  <nq@altern.org>

	* Edit and save data objects
	* Finish system property of units
	* Clean up some left over plural and singular stuff
	* Add unit system to edit GUI

2004-08-26 Niklas Knutsson  <nq@altern.org>

	* Planets data set
	* Day and Julian Year
	* Fix set icon
	* Do not always make Calculator message window transient for main window
	* Save and load accel map

2004-08-25 Niklas Knutsson  <nq@altern.org>

	* data collection -> data set
	* Complete data set GUI

2004-08-24 Niklas Knutsson  <nq@altern.org>

	* Complete most of the data collection stuff
	* Move elements to data collection format

2004-08-23 Niklas Knutsson  <nq@altern.org>

	* Fix diff() with variables and functions that contains x
	* Simple integration

2004-08-22 Niklas Knutsson  <nq@altern.org>

	* ans2, ans3, ans4 and ans5
	* google/googleplex -> googol/googolplex
	* thousand and hundred
	* Reduce min result area height
	* Put angle mode in evalution options
	* Status text
	* Save to image
	* Initial work on data collection concept

2004-08-20 Niklas Knutsson  <nq@altern.org>

	* Fix RPN mode
	* include errno.h

2004-08-16 Niklas Knutsson  <nq@altern.org>

	* Remove giac arguments
	* Update documentation

2004-08-15 Niklas Knutsson  <nq@altern.org>

	* Fix prefix selection when first positive/negative exponent prefix
	* No prefix in result prefix menu
	* Only left parenthesis where added around vector!
	* Make the title for mils more descriptive
	* FIx matrix multiplication

2004-08-14 Niklas Knutsson  <nq@altern.org>

	* Make no comparison to solve error message more informative
	* Do not factorize if factor is not non-zero
	* Fix prefix selection with negative exponent prefixes
	* Fix prefix selection with denominator prefix enabled

2004-08-13 Niklas Knutsson  <nq@altern.org>

	* Fix concatenate()
	* Add localized full name to ans variable
	* Make sure that completion pops down when going back in history
	* Set minimum arguments to 1 for mergevectors()

2004-08-12 Niklas Knutsson  <nq@altern.org>

	* Fix derangements() which was broken due to changed interpretation of -1^x
	* CALCULATOR->u_rad was null
	* True and False variables
	* "yes" -> "Yes" and "no" -> "No"
	* Localize "True" and "False" radio buttons
	* Add *.xml.in files to the dist tar sources
	* Complete exp1 in "2+5exp1"
	* Add undefined variable
	* Fix ids in text arguments when function is used in other function (fixes distribution functions)
	* Show classification in atom() dialog

2004-08-11 Niklas Knutsson  <nq@altern.org>

	* Remove double decimal points
	* Nicer unit printing
	* Warn in name edit dialog if name is used
	* Update documentation
	* Use gtk-paste instead of gtk-go-forward icon for insert
	* Properties dialog for atoms in periodic table
	* Respect max decimals with show ending zeroes
	* Fix precision typos which made objects with undefined precision approximate
	* Make element properties selectable
	* Paste function instead of value of element property
	* Display classification in element dialog
	* Unformat parsed function expression
	* Make sure that no unwanted prefixes are left when function expression has been parsed
	* BMI (Body Mass index) function added (just to prove that Qalculate! is more than a scientific calculator)

2004-08-10 Niklas Knutsson  <nq@altern.org>

	* Reduce number of element properties for now and verify
	* Periodic table
	* Update Swedish translation

2004-08-09 Niklas Knutsson  <nq@altern.org>

	* Do not be backwards compatible for definitions saved with the current version
	* Update Swedish translation
	* Where there is approximate there shall also be precision
	* More physical constants
	* Fix formatting of x/unit
	* Add atomic mass unit, u
	* Add <system>si</system> again
	* Elements!
	* Ignore initial zeroes for precision

2004-08-08 Niklas Knutsson  <nq@altern.org>

	* Finish names GUI
	* Finish new number precision system
	* Menu item for read precision
	* Option to show ending decimals (to see actual precision)
	* Fix parsing of numbers with base < 10 and decimal point

2004-08-07 Niklas Knutsson  <nq@altern.org>

	* Initial work on GUI for new name system
	* Treat whole ending number as suffix (for log10)

2004-08-06 Niklas Knutsson  <nq@altern.org>

	* More work on name system
	* Remove quarter unit
	* Regenerate definition files
	* Remove duplicate names

2004-08-05 Niklas Knutsson  <nq@altern.org>

	* Do not prefix currencies in all locales

2004-08-04 Niklas Knutsson  <nq@altern.org>

	* New system for variable, unit and function names
	* Solve quadratic equations

2004-07-31 Niklas Knutsson  <nq@altern.org>

	* System property for units ("si" value only used for now)
	* Optional automatic conversion to best or base units
	* Update version number in global definition files
	* Add CGS units

2004-07-30 Niklas Knutsson  <nq@altern.org>

	* Mark SI units
	* Convert to best unit now only converts to SI units
	* Mass Fraction (kg/kg)
	* Fix insert and edit composite unit

2004-07-29 Niklas Knutsson  <nq@altern.org>

	* Electron Volt is approximate

2004-07-21 Niklas Knutsson  <nq@altern.org>

	* Fix arg()
	* ...and disable it as it does not work correctly
	* Fix i being display multiple times

2004-07-20 Niklas Knutsson  <nq@altern.org>

	* Focus tweaks

2004-07-19 Niklas Knutsson  <nq@altern.org>

	* -5^2 = (-5)^2 -> = -(5^2)
	* Beautify 2 * -1
	* Fix not

2004-07-18 Niklas Knutsson  <nq@altern.org>

	* Show if precalculation display is approximate
	* Show if approximate conversion in units manager
	* Enable unicode signs in from-unit label
	* Deillion -> Decillion
	* Refine when to update result and display of result
	* Ability to disable complex results
	* Ability to disable infinite results

2004-07-17 Niklas Knutsson  <nq@altern.org>

	* Update variable lists in GUI after save function has been called
	* Do not let the user type any braces in the expression entry
	* Select added plot series and let enter in plot expression entry modify selected (if any selected)
	* Fix rad unit being dropped in unsolved sin/cos function
	* Fix plus/minus before id
	* Show precalculation result in history view

2004-07-16 Niklas Knutsson  <nq@altern.org>

	* Oops! operators does not include parenthesis
	* Use unicode operators in text printing
	* base == 10 -> base >= 2 && base <= 10 (in parsing)
	* Refine CSV export dialog
	* Sort out some getActive... vs get...
	* Fix too many arguments warning
	* Increase function parsing efficiency (decrease number of MathStructure copies)
	* Produce vector imediately on parse
	* Export button in variables dialog
	* Split number base expression and export csv dialogs from main.glade
	* Remove <requires lib="gnome"/> lines
	* Update Swedish translation
	* Update documentation
	* Fix nameTaken()
	* Fix overwriting variable
	* Remove deleted items from recent units/variables/functions
	* Do not try to insert deleted variable

2004-07-15 Niklas Knutsson  <nq@altern.org>

	* More work on base in parse options
	* Fix E in rpn mode
	* Parsing tweaking
	* GUI for number base in expression

2004-07-14 Niklas Knutsson  <nq@altern.org>

	* Alternative to round halfway integers to even (instead of upwards)
	* Make qalculate symlink from qalculate-gtk
	* Fix addColumns() and import of CSV file to matrix
	* Export to CSV file
	* if, function, error, warning, load, save and title functions were not activated (oops!)
	* Let argument definitions parse default values
	* Do not parse ! as factorial if functions is disabled
	* Ability to set number base for expression parsing
	* Allow full expressions in base functions

2004-07-13 Niklas Knutsson  <nq@altern.org>

	* Ability to set all number bases from 2 to 36 from GUI
	* Documentation updates
	* Alternative to use lower case letters in numbers
	* Fix double decimal point with integers
	* Fix decimal reduction rounding
	* Fix precision rounding
	* Fix approximate indication with multiple numbers
	* Fix printing of empty vector

2004-07-12 Niklas Knutsson  <nq@altern.org>

	* Update documentation
	* Force use of -O2 instead of -Os
	* Revert back to a^b^c = a^(b^z) (I don't remember changing it)
	* Unknowns disabled by default
	* Copy subfunctions
	* GUI for subfunctions

2004-07-11 Niklas Knutsson  <nq@altern.org>

	* Do not segfault on exit
	* Fix compilation warnings

2004-07-10 Niklas Knutsson  <nq@altern.org>

	* Do not try to fetch exchange rates everytime they are missing
	* Set fetch timeout to 5 seconds on first run
	* Inform user that we are trying to fetch exchange rates
	* Update fetch exchange rates at startup in preferences dialog

2004-07-05 Niklas Knutsson  <nq@altern.org>

	* Follow ISO 8601 standard for week numbers (glib doesn't)
	* Sort out approximation with rounding

2004-07-03 Niklas Knutsson  <nq@altern.org>

	* Fix input of numbers in bases > 10
	* Is approximate? fixes
	* usleep() is obsolete. use nanosleep() instead
	* Terminate threads before exit
	* Include unistd.h in main.cc for pipes

2004-06-24 Niklas Knutsson  <nq@altern.org>

	* definitions -> subfunctions
	* save subfunctions
	* Function::countSubfunctions()
	* Fix for()
	* Fix creation of vectors with zero or one component
	* Pass parse options to function parsing
	* Variables might contain functions
	* Fix approximate integer printing
	* Fix try exact

2004-06-23 Niklas Knutsson  <nq@altern.org>

	* Release v. 0.6
	* Do not create a new thread for every calculation and printing

2004-06-21 Niklas Knutsson  <nq@altern.org>

	* ...

2004-06-18 Niklas Knutsson  <nq@altern.org>

	* Continue converting to new internal structures

2004-06-14 Niklas Knutsson  <nq@altern.org>

	* Continue converting to new internal structures

2004-05-25 Niklas Knutsson  <nq@altern.org>

	* Converting to new internal structures

2004-05-12 Niklas Knutsson  <nq@altern.org>

	* New internal structures (Manager -> MathStructure)

2004-04-05 Niklas Knutsson  <nq@altern.org>

	* Find linear function
	* Do not automatically recalculate on precision spinbutton update and add recalculate button to avoid annoying problems
	* More multiple root updates
	* Do not just clear the window, clear the pixbuf too
	* MatrixArgument->type should not return TEXT_ARGUMENT
	* Multiple roots updates

2004-04-04 Niklas Knutsson  <nq@altern.org>

	* Put in some restrictions and enable multiple roots
	* Disable multiple roots
	* Remove 0 == any number from Manager->equals
	* try x^(y+z) = x^y*x^z and x^(yz) = x^y^z

2004-04-03 Niklas Knutsson  <nq@altern.org>

	* Capitulate in search for exact as long as possible to fix alternatives
	* Recalculate directly on angle unit change
	* Enable multiple roots again
	* Do not ignore unsolvable comparison
	* Remove imaginary or real part present because of approximate floating point numbers
	* Do not display errors for arguments in exact precalculation
	* Do not display extra trailing zeros
	* Make comparison between floats in lower precision (but not less than user defined precision)
	* Fix printing of toplevel negative complex number
	* Return -(x^(1/3)) for (-x)^(1/3)

2004-04-02 Niklas Knutsson  <nq@altern.org>

	* Remove integrate parts that does not work
	* Do not crash on i^4
	* Disable broken multiple roots

2004-04-01 Niklas Knutsson  <nq@altern.org>

	* Hyperbolic and inverse does not take angle arguments
	* Fix raise by matrix
	* Fix raise by alternatives
	* Fix drawing of function

2004-03-31 Niklas Knutsson  <nq@altern.org>

	* More solve work
	* Fix sorting of alternatives
	* Fix wrong add alternatives to alternatives logic
	* Clean after multiplication raise... (serious bug)
	* Quadratic equations
	* Non-giac solve function and automatic "solving" of comparisons
	* Better comparison equals printing
	* Minimal non-giac integrate function

2004-03-30 Niklas Knutsson  <nq@altern.org>

	* Finance -> Economics/Finance
	* Demand Elasticity function
	* Fix that all arguments wanted text after function editing
	* Free temporary composite units
	* Fix sin(x)/tan(x)
	* No (+ -) in printing with complex numbers
	* Fix sorting of complex numbers

2004-03-29 Niklas Knutsson  <nq@altern.org>

	* Release v. 0.5
	* More extensive, verbose and fault-tolerant roman input

2004-03-28 Niklas Knutsson  <nq@altern.org>

	* Set exact button for edit variable
	* Fix diff() with power without x
	* Fix compilation with gtk+ < 2.3
	* Do not crash on abort sum() (memory leak is better)
	* Change line width instead of drawing multiple lines
	* Use barckets instead of parenthesis when drawing matrix
	* Use commas for vector drawing
	* Fix matrix text printing

2004-03-27 Niklas Knutsson  <nq@altern.org>

	* Do not let user disable loading of global definitions
	* Do not raise if makes approximate in exact mode
	* Cleanup unused functions
	* Fix hypotenuse and make non-builtin
	* Automatically act on "calculate variables"
	* Set e as default second argument in log()

2004-03-26 Niklas Knutsson  <nq@altern.org>

	* time()
	* week(), weekday(), year(), month(), day()
	* Allow "today" for dates
	* Use both localized and non-localized "to"
	* Sexagesimal number display
	* Fix prefixes with simple display format
	* Sexagesimal number input
	* (2 > 0) + (2 > 0) = 2 * (2 > 0)
	* Polynomial division refinements

2004-03-25 Niklas Knutsson  <nq@altern.org>

	* Roman numerals
	* Polynomial division

2004-03-24 Niklas Knutsson  <nq@altern.org>

	* Fix printing of complex numbers with negative imaginary part and no real part
	* re() and im()
	* Fix unit conversion
	* Imperial and U.S. capacity units
	* Fix nested product() and sum()
	* Correct treatment of (), "", '', and {} in text argument

2004-03-23 Niklas Knutsson  <nq@altern.org>

	* Symbols for sum, product and ohm
	* derangements()
	* sum() and product() corresponding to the signs
	* sum() -> total()
	* Reorganisation of function categories

2004-03-22 Niklas Knutsson  <nq@altern.org>

	* Complete convert to best unit

2004-03-21 Niklas Knutsson  <nq@altern.org>

	* Make result context menu context sensitive
	* Protect intValue and longIntValue against overflow
	* Fix printing of exponent 1E...
	* Convert to best unit (beginning)
	* Convert to base units

2004-03-20 Niklas Knutsson  <nq@altern.org>

	* Define sin and cos as expressions
	* e^(i*pi) = -1 ...
	* ln -1 = i*pi, ln i = i*pi/2, ln -i = -i*pi/2
	* permanent()
	* Print short currency unit before value
	* Factorize independent of giac
	* Make my own derive function default

2004-03-19 Niklas Knutsson  <nq@altern.org>

	* asec, acsc, acot, sech, csch, coth, asech, acsch, acoth
	* cis
	* As we now have complex number, define inverse trigonometric functions as expressions
	* sec, csc, cot
	* "CAS" -> "Calculus"
	* Update my own derive function and enable it if giac is not used
	* Fix ln() argument so that e can pass through

2004-03-18 Niklas Knutsson  <nq@altern.org>

	* Show error when custom condition is not met
	* area, ascii and char functions
	* Limits function should accept negative numbers for end. Fixes trimmed, weighted and winsorized mean.
	* Nicer text printing of matrices and vectors

2004-03-17 Niklas Knutsson  <nq@altern.org>

	* Save size of history dialog
	* Show a nice little help message the first time Qalculate! is started
	* Update Swedish translation
	* "quaert" -> "quart"
	* Do not insert parenthesis when completing if they already are there
	* New error message when matrix has no inverse
	* Make abort messages localized and nicer
	* Limit width of result display text
	* Use transparent pixbuf for result to not look ugly with pixmap themes
	* Support newer Giac versions

2004-03-16 Niklas Knutsson  <nq@altern.org>

	* Serious try to fix the localized decimal point and comma once and for all
	* Use [] for vectors and matrices
	* Use Page Up and Page Down for expression history instead to allow completion to use Up and Down keys
	* huh! do not sort functions.
	* "European 30/365" -> "European 30/360"
	* Fix date calculations
	* Add "allow_complex" property for number arguments
	* Fix abs (for complex numbers)

2004-03-15 Niklas Knutsson  <nq@altern.org>

	* Handle CLN errors better
	* Font selection for expression entry
	* Replace Fraction and Integer with new Number class

2004-03-12 Niklas Knutsson  <nq@altern.org>
	
	* Set selected font in custom font dialog
	* Save time by first destroying completion then updating list then creating new completion on update
	* Do not crash when updating completion after new variable
	* Bring up user interface as soon as possible
	* Make completion block work
	* Move recent objects to to the top of object menus
	* "buttons" -> "keypad"
	* Completion finished
	* Ugly fix to not complete on completed
	* Add units to completion if not composite
	* Use g_utf8_next_char and g_utf8_prev_char

2004-03-11 Niklas Knutsson  <nq@altern.org>

	* Advanced completion in expression
	* Popup menu for resultview

2004-03-10 Niklas Knutsson  <nq@altern.org>
	
	* Lower default precision
	* Make history button a regular button
	* Reworked GUI -- menubar, expander, history window...
	* Release 0.4.2a
	* Set correct name on separator again
	* Fix some compiler warnings
	* Fix compilation without Giac

2004-03-08 Niklas Knutsson  <nq@altern.org>

	* Release 0.4.2
	* Proofread manual
	* Allow currencies to be put in front of quantity
	* Cent, yen, pound and dollar signs
	* Remove debug output related to Giac 
	* Fix some troubles printing complex numbers

2004-03-07 Niklas Knutsson  <nq@altern.org>

	* Update Swedish translation
	* First manual draft finished
	* Remove compiler warnings

2004-03-06 Niklas Knutsson  <nq@altern.org>
	
	* Gnuplot does not like quotation signs
	* Do not abort when locale not supported by C library

2004-03-05  Niklas Knutsson  <nq@altern.org>

	* Fix unit conversion of ex. ch^2 to acre
	* Some menu fixes
	* More user documentation

2004-03-04  Niklas Knutsson  <nq@altern.org>

	* Move calculate multiple roots option to result menu
	* Move unit display options to a unit display submenu
	* Begin writing the manual
	* Add help menu item if libgnome is available	
	* Add build structure for gnome style user documentation

2004-03-03  Niklas Knutsson  <nq@altern.org>

	* Fix exponential display in non-fractional mode with negative exponents
	* Fix big mistake in log (if negative exact result, returned zero)
	* Use "tab" for tab ("\t") a separator in load

2004-03-01  Niklas Knutsson  <nq@altern.org>

	* Load CSV file as matrix function (load)
	* File argument
	* Replace localized decimal point with dot in plot data
	* Save history (20 rows)
	* Expression entry history
	* "Save Result" -> "Store Result"

2004-02-28  Niklas Knutsson  <nq@altern.org>

	* Calculate command line expression

2004-02-26  Niklas Knutsson  <nq@altern.org>

	* Release 0.4.1
	* Fix parsing of text arguments
	* Replace strptime with g_date_set_parse

2004-02-24  Niklas Knutsson  <nq@altern.org>

	* Destroy widgets after autoconnect

2004-02-19  Niklas Knutsson  <nq@altern.org>

	* Use the new file chooser
	* "Select file to import" --> "Select file to export"

2004-02-18  Niklas Knutsson  <nq@altern.org>

	* Release 0.4
	* Fix tanh

2004-02-15  Niklas Knutsson  <nq@altern.org>

	* Reenable checks for arguments that results in infinity
	* Fix comparison with complex numbers (not solvable)

2004-02-12  Niklas Knutsson  <nq@altern.org>

	* Add giac functions in functions.xml

2004-02-11  Niklas Knutsson  <nq@altern.org>

	* Fix binomial arguments
	* Update Swedish translation

2004-02-10  Niklas Knutsson  <nq@altern.org>

	* Remove PACKAGE and VERSION warnings with giac
	* Permutations and combinations

2004-02-09  Niklas Knutsson  <nq@altern.org>

	* Start even if gnuplot is not present

2004-02-08  Niklas Knutsson  <nq@altern.org>

	* Complex numbers: log, pow, root

2004-02-07  Niklas Knutsson  <nq@altern.org>

	* Filter out all duplicate errors
	* Fix compilation without giac
	* Forward: "Copy Result" menu item
	* Forward: Correctly calculate divison by root with multiple solutions.
	* Forward: Remove unused non-portable function.

2003-11-02  Niklas Knutsson  <nq@altern.org>

	* Complex numbers...
	* Complex number printing
	* Use Newton's Binomial Formula for raised addition manager
	* Binomial function
	* Manager::set(const Integer*)
	* Start work on complex numbers

2003-10-30  Niklas Knutsson  <nq@altern.org>

	* Show argument names when too few arguments
	* Really no need to have exp, exp2 and exp10 as builtins
	* Log tweaks
	* More trigonometric tweaks
	* Giac might actually return -1*1 (we prefer -1)
	* Catch giac errors
	* Define tan, asinh, acosh, atanh as sin(x)/cos(x), log(x+sqrt(x^2+1)), ...
	* Handle pi correctly in trigonometric functions
	* Delay calculation of inexact values
	* New variable manager

2003-10-29  Niklas Knutsson  <nq@altern.org>

	* Giac function
	* Factorize in result menu
	* New functions: diff, integrate, solve
	* Giac support
	* Do not crash when printing a manager with matrix

2003-10-27  Niklas Knutsson  <nq@altern.org>
	
	* Release Qalculate-GTK version 0.3.1
	* Left over missing setPrecise() in builtin functions
	* Fix printing of function manager
	* Fix display of only number in numerator
	* Parenthesis adjustments
	* Update swedish translation
	* More extensive error handling for misplaced operators
	* Replace "**" with "^"
	* Fix parenthesis in Manager::print()
	* Recreated Manager::print() from gtk drawing function
	* Optional prefix for denominator
	* Reworked composite unit printing
	* Reworked prefix handling
	* Reworked drawing of MULTIPLICATION_MANAGER
	* Fix loadLocalDefinitions()
	* Year and Century units
	* Fix parsec, light year, astronomical unit, and torr
	* Plural fixes
	* Draw unit names with "_" replaced by space

2003-10-24  Niklas Knutsson  <nq@altern.org>

	* Compability fixes for Unit.cc
	* change strold to strol in HEX()
	* remove ld2s()
	* provide another workaround for strptime
	* some warnings left
	* remove llpow() as it only creates problems
	* __USE_XOPEN for strptime
	* Replace insert(0, 1, ...) with insert(begin(), 1, ...)
	* Fix ALL warnings
	* Ignore blanks in BIN(), OCT(), HEX(), BASE()
	* Fix number bases dialog

2003-10-23  Niklas Knutsson  <nq@altern.org>

	* Do not use scandir as Solaris does not support it
	* Access hash_map header properly
	* Update POTFILES.in for new glade files
	* Remove #include <ext/hash_map> from Calculator.h

2003-10-22  Niklas Knutsson  <nq@altern.org>

	* Split up glade file
	* minute -> min
	* Now function can have the same name as a unit or variable, but units and variables cannot have the same name

2003-10-21  Niklas Knutsson  <nq@altern.org>

	* Release Qalculate-GTK version 0.3
	* Disable convert in units dialog when no unit selected	
	* Revert fractional button to use combined fractional display, but treat it as normal fractional display for regular text
	* Draw parenthesis around not alone manager (not power) with childs in denominator
	* Add a bit more space behind italic text to not cut tall chars off
	* More drawing fixes

2003-10-20  Niklas Knutsson  <nq@altern.org>

	* Include all bytes in unicode char for unknown variables in setFunctionsAndVariables()
	* Fix Manager->print(), and as below
	* Display x^-y as 1/x^y in non-scientific mode
	* Draw multiplication manager fixes
	* Put menus before items
	* More TODO
	* Also add icon.xpm
	* Add qalculate.h to Makefile.am to get it included in dist
	* Accel fixes and additions
	* Move "convert number basis" to the other menu
	* Reorder some buttons to follow HIG
	* Make convert unit dialog non-modal

2003-10-19  Niklas Knutsson  <nq@altern.org>

	* Display ^0.5 as square root
	* Fix display of ugly -x^-0.5 (still ugly but no duplicate ones and spaces)
	* Stop display errors a bit more...

2003-10-18  Niklas Knutsson  <nq@altern.org>

	* Do not delete selection on sqrt button clicked but act as with the other functions
	* Make answer variables a special case which cannot be edited and does not display result in variable dialog
	* Change "first"/"second" axis to "primary"/"secondary"
	* Put axis after smooth
	* Fix rms(), stdev(), stdevp()
	* Fix error in setFunctionsAndVariables that stopped unknown variables after something was set
	* Remove CVS version title
	* Write something in AUTHORS and NEWS
	* Hidden property in function and unit edit dialogs
	* Hide some annoying composite units (m/m and m2/m2)
	* Hide hidden items in menus
	* New hidden property for ExpressionItem (meant for some composite units and sub functions)

2003-10-17  Niklas Knutsson  <nq@altern.org>

	* Finally implement angle units and allow direct specification of angle unit in trigonometric functions
	* rem and rad units renamed to rem_radioactivity and rad_radioactivity
	* Some swedish translation updates
	* Some tooltip updates
	* Some TODO updates
	* Fill in the last argument titles and add some descriptions
	* Set min arguments to zero if lower (and max to -1)
	* Argument names and descriptions for matrix and vector functions
	* Rename title "Power" with "X raised to Y" to solve translation conflict with the category "Power"
	* Fix 0^0 warning

2003-10-16  Niklas Knutsson  <nq@altern.org>

	* If add argument button is not sensitive, modify argument instead on enter
	* Fix arguments for process()
	* Titles for functions and arguments in utilities category
	* Put buttons in first tab
	* Default to show buttons
	* Remove quotes from default values in insert function dialog
	* Matrix multiplication error message
	* Better error message for misplaced operators
	* Updated swedish translation
	* More argument names
	* Fix category selection after editing
	* Argument names for all geometry functions
	* Do not use "free" for argument == NULL but printlong() of default argument

2003-10-15  Niklas Knutsson  <nq@altern.org>

	* Do not add extra space after matrix in GTK widget
	* Update rank() and sort() to new comparison that not only allows fractions
	* Update min() and max() to new comparison that not only allows fractions
	* Go back to builtin sum() function as sum() is used often and csum() is rather slow
	* eurocent and cent
	* Fix yearfrac() for basis = 1
	* More TODO
	* Category "Matrices" -> "Matrices & Vectors", "Financial" -> "Finance"

2003-10-13  Niklas Knutsson  <nq@altern.org>

	* Finally make class variables in Manager protected
	* setPrecise(fraction()->isPrecise()) after operation directly on Manager::fraction()
	* Change output of "log" button to log10
	* Write more in TODO

2003-10-11  Niklas Knutsson  <nq@altern.org>

	* Update plot on add/modify/remove
	* Use only one gnuplot process/window and close it on exit
	* Fix crach on create new variable dialog
	* Delete the submenus, not the menu item, when updating
	* Do not update treeviews if not created
	* Save plot settings
	* Switch to enums for style and smoothing

2003-10-10  Niklas Knutsson  <nq@altern.org>

	* More plot stuff
	* Change step to steps
	* Make that the second tab page is realised
	* Save plot as postscript, eps, png, svg, fig or latex
	* Set a nicer font for gnuplot
	* Plot dialog: tabwidget, paired matrix, save
	* Plots: logscale, style, separate smoothing for each line, title, grid, color, linewidth, borders
	* Set timeout for wget and error on fail
	* Check if wget and gnuplot is available

2003-10-08  Niklas Knutsson  <nq@altern.org>

	* Plot dialog
	* Lots of plotting stuff
	* Hide on destroy and delete events for non-modal windows
	* Place terms with negative sign in the back when not using scientific sorting
	* Do not display more than one minus
	* Change compare() in Manager to sortCompare() and add real compare() function
	* Plot vector
	* Plotting with gnuplot
	* Fix crash with no argument definitions and variable number of arguments
	* Do not recreate currencies, just change the relation

2003-10-07  Niklas Knutsson  <nq@altern.org>

	* Fully enable builtin units
	* Do not print the same error message more than once
	* Fetch exchange rates from ECB
	* Fix crash by removing new line for alternative manager and gettextize the "or" while we are at it
	* Root functions non-abs
	* Fix argument check on alternative manager
	* Remove unnecessary gtk_main_iteration() as they create lots of problems
	* Do not unref wrong Manager in conversion in units dialog
	* Fix check of arguments in functions with unlimited number of arguments
	* Remove (again) prepended "1" for composite units
	* Fix prefixes

2003-10-06  Niklas Knutsson  <nq@altern.org>

	* Allow disabling of multiple roots
	* "Recently Used"-menu
	* Fix rounding of negative numbers
	* Fix adding ALTERNATIVE_MANAGER to ALTERNATIVE_MANAGER
	* Change GUI code to allow unrestrained category depth
	* Load builtin unit definitions even if we have no such
	* Do not write active and precise attributes when true
	* Organize definitions files in a category tree structure
	* Make execute button in insert function dialog non-stock
	* Change button text to "Insert"
	* Fix insert function with undefined arguments
	* Use a frame for description in insert function dialog

2003-10-02  Niklas Knutsson  <nq@altern.org>

	* Use &amp; for &
	* Fix NOT
	* Fix signedness function (and comparisons)
	* Replace "<" with "&lt;" and ">" with "&gt;"
	* Display NOT_MANAGER
	* Make it configurable in preferences
	* Do not use annoying prefixes (hekto, deka, centi, deci) by default
	* Change unit conversion from printing value to using a value id as was originally intended
	* Delete string alternative "," when switching locale
	* #ifdef out fenv.h and floating point exceptions as they are only obstructing portability when using CLN
	* Cleanup
	* Warning function
	* Disable message function for now

2003-10-01  Niklas Knutsson  <nq@altern.org>

	* Updated swedish translation
	* Do not actually lower the precision below 10 to prohibit overflow
	* Do not act when setting the initial value of spinbuttons
	* Precision and decimals dialog need not be modal
	* Actually load the correct nodes for the locale
	* New simpler algorithm for reading function arguments, which handles citations correctly
	* Accept zero length strings
	* Concatenate and Length functions
	* Save function

2003-09-30  Niklas Knutsson  <nq@altern.org>

	* Execute expression when updating result display if expression has changed
	* Do not display more than 1500 digits in result display widget and not more than 500000 digits in history (works for me at least)
	* Restrict display time in variables dialog
	* Restrict value length if variables dialog
	* Delay calculation of variables
	* Remove signs menu
	* Try to speed up determinant (not very succeful)

2003-09-29  Niklas Knutsson  <nq@altern.org>

	* A little icon for the window
	* Update display outside of thread
	* Do not reverse order when transforming manager
	* Merge boolean operations into Manager class to enable unsolved operations
	* Make sure that thread actually is canceled before resuming
	* Change log to log10 and logn to log
	* Ignore syntax error function without parentesis are space before argument
	* New better algorithm for Calculator::setFunctionsAndVariables()
	* Nicer functions, variables and units dialogs
	* Show a nice progress dialog
	* More information (syntax and arguments) in description in functions dialog
	* Sort categories in edit dialogs

2003-09-27  Niklas Knutsson  <nq@altern.org>

	* Safer threads
	* Switch unit->name() to short name and add singular to enable translation
	* Enable xml data translation
	* Use less attributes in xml
	* Implement GUI editing of argument rules
	* Replace empty optional value with default value
	* Fill in default values in insert function dialog
	* Add ability to abort long calculations
	* ...and slow result display

2003-09-25  Niklas Knutsson  <nq@altern.org>

	* New condition for functions which can test the relation between arguments
	* Error function
	* Boolean operators
	* For (loop) function
	* Fix crash on delete inactive definition in GUI
	* Definition edit fixes

2003-09-24  Niklas Knutsson  <nq@altern.org>

	* Move defintions to library and PACKAGE_DATA_DIR/qalculate
	* Place local definitions in ~/.qalculate/definitions and load everything in that directory
	* XML definitions files
	* Update function edit dialog to new argument definitions, and turn function expression entry into a textview
	* Furthering argument definitions: new Argument classes that tests type and value
	* Fix parenthesis madness and handle missing left parenthesis

2003-09-22  Niklas Knutsson  <nq@altern.org>

	* ExpressionItem::isRegistered()
	* Once again constants -- new DynamicVariable class that recalculates value when precision has changed
	* Fix ...E-...
	* Fix root for negative results
	* Fix log for negative results
	* Fix display of ...E...
	* Fix infinite loop with prefixes <= 10E-1
	* Check file format and version of definitions file

2003-09-21  Niklas Knutsson  <nq@altern.org>

	* Fix error message when too many arguments
	* Change "years_between_dates" to "yearfrac"
	* Fix day counting basis (hopefully gnumeric has done it right)
	* More financial functions
	* Fix mod, rem and frac
	* Better RPN support

2003-09-20  Niklas Knutsson  <nq@altern.org>

	* RPN Mode
	* Clean up EqItem.cc
	* Add variables for constants functions
	* Load definitions in exact mode
	* Reset (and restore) mode when loading definitions
	* Lots of tooltips (too many perhaps?)
	* Some definitions fixes
	* Function edit dialog: turn argument entry into a list view and add argument type
	* Do not locally save global deactivations

2003-09-18  Niklas Knutsson  <nq@altern.org>

	* Big restructuring to fix editing of global definitions, including deactivation
	  of definitions and a new virtual ExpressionItem class
	* More error messages in matrix functions
	* Check if matrix operations were successful
	* Correct bad setPrecise(false) call in matrix
	* Speed up csum function for large vectors in statistical functions
	* Fix addition^integer
	* Fix display of 1/-x
	* Fix sqrt()
	* Fix display of fraction with 'E'
	* Fix display of 5*5^x
	* Fix detection of long prefixes
	* Fix 'E' (now we can have it in names)
	* Type label, spin buttons, date picker etc. in insert function dialog
	* Argument type

2003-09-15  Niklas Knutsson  <nq@altern.org>

	* Fix insert function dialog
	* Add scrollbars to table in matrix edit dialog
	* CSV file import
	* Lots of statistical functions: range, harmonic mean, geometric mean, trimmed mean,
	  winsorized mean, quadratic mean, quartile, decile, percentile, interquartile range,
	  variance, standard error, mean deviation, pearson, spearman's rho,
	  covariance, correlation, pooled variance, paired t-test, unpaired t-test...
	* Add limits to custom sum function and allow references to other than current element (x_i-1)
	* Limits
	* Clean up base conversion functions
	* Fix If function

2003-09-11  Niklas Knutsson  <nq@altern.org>

	* Sort function
	* Buttons to set if precise in variable and unit edit dialogs
	* Exact mode
	* Use vectors in max, min, mode and median
	* Make constants functions for more flexible precision

2003-09-10  Niklas Knutsson  <nq@altern.org>

	* Change behavior of decimals settings
	* CLN support (requirement for now, in place of GMP)
	* Disable gnome support in glade file

2003-09-09  Niklas Knutsson  <nq@altern.org>

	* More accurate roots using Newton's Method with the libc function as initial value
	* Require GMP (it is not a priority right now to fix my own integer implementation)
	* GUI for edit/create matrix/vector
	* Remove repaint artifacts
	* Rank function

2003-09-08  Niklas Knutsson  <nq@altern.org>

	* Pearson Correlation and Spearman's rho (still needs rank function)
	* Replace hardcoded statistical functions
	* Utility functions: csum (Custom sum), process (Process vector components)
	* Vector (\v) in user functions
	* Function function for immediate creation and execution of a custom function
	* Indicate infinite sequence of decimals (configurable)
	* Custom font selection
	* Vector
	* Better alignment

2003-09-07  Niklas Knutsson  <nq@altern.org>

	* Use GtkDrawingArea to make result display nicer
	* More matrix functions: cofactor, adjoint, inverse

2003-09-03  Niklas Knutsson  <nq@altern.org>

	* Matrix functions: determinant (det), identity, transpose, element, columns, rows, matrix
	* Multiple solutions (4^0.5 = 2 or -2)
	* More work on matrices

2003-09-02  Niklas Knutsson  <nq@altern.org>

	* Beginning of matrix support
	* Fix zero division

2003-09-01  Niklas Knutsson  <nq@altern.org>

	* factorial function and !
	* frac and int functions
	* Menu items for fractional representation
	* Turn "use prefixes" into check menu item

2003-08-31  Niklas Knutsson  <nq@altern.org>

	* Move builtin functions to fraction system
	* Reactivate display modes, decimals and precision
	* Use GMP if available in Integer class (much faster)

2003-08-30  Niklas Knutsson  <nq@altern.org>

	* Show if result is exact or not
	* Arbitrary precision
	* Move from long double to Fraction

2003-08-24  Niklas Knutsson  <nq@altern.org>

	* Decimal string to fraction
	* Date functions (for financial functions)
	* Fixes

2003-08-23  Niklas Knutsson  <nq@altern.org>

	* Localized dot and more

2003-08-22  Niklas Knutsson  <nq@altern.org>

	* Fractions and restructuring

2003-08-20  Niklas Knutsson  <nq@altern.org>

	* CALCULATOR macro (removes Calculator object from all classes)
	* New Prefix class and new get/add prefix functions; prefixes stored in a sorted vector
	* New get Function/Variable/Unit(index) functions

2003-08-20  Niklas Knutsson  <nq@altern.org>

	* Fraction button
	* Fraction Manager
	* New Fraction class

2003-08-19  Niklas Knutsson  <nq@altern.org>

	* Add title label to insert function dialog
	* Remove duplicate adding of answer variables, and remove from global definitions file... and gettextize

2003-08-18  Niklas Knutsson  <nq@altern.org>

	* Qalculate! version 0.2 released
	* Last minute fixes
	* More unicode
	* Fix display of exponent of exponent
	* Put unicode chars on buttons in code and add option to disable unicode signs
	* Unicode math operators
	* Save version info to configuration file
	* Update version number

2003-08-17  Niklas Knutsson  <nq@altern.org>

	* Only put "1 " in front of unit in toplevel
	* Fix 5*5^m (endless loop in Manager::convert)
	* Unscientific mode gives inexact result display -- disable for now
	* Disable installation of old German translation (will enable again after v0.2)
	* Create en_GB and en_US locales to get that nice square root sign
	* Do not shrink result label on clear
	* Do not expand menu buttons
	* Make functions dialog a bit nicer
	* Make units dialog a bit nicer
	* More energy and pressure units
	* Some constants
	* Write variables to file with maximum precision
	* Show variable title in menu and tree
	* Unit expression conversion fixes
	* Make operators wrap selection in parenthesis instead of deleting it, thus they operate on the result after execute
	* Insert ^ directly instead of waiting for another key press.
	* Fix annoying repositioning of text cursor in n-bases dialog
	* Update conversion in units dialog after focus out event in entries
	* Remove empty parenthesis after zero argument functions
	* Fix disabling of units
	* Fix unclosed brackets
	* restrict abs() to numbers
	* Change Function::name(string), Unit::title(string), etc. to setTitle(), setName()

2003-08-16  Niklas Knutsson  <nq@altern.org>

	* Google style in expression conversion (ex. 5 m to ft = 16.4 ft)
	* Small unit conversion fix (1 km/1 kg => 1 km/kg).
	* More units.
	* Fix loading of alias unit that is defined before its base unit in file
	* Modify priotrity for calculations so that inexplicit multiplication is calculated before division (2/2(x) = 2/(2*x)) and functions (sin 2x(x) = sin (2x*x), but sin(2x)(x) is still sin(2x)*x)
	* Some restructuring
	* Unbreak brokeness from last fix
	* Move three small dialogs to Glade
	* Convert button

2003-08-15  Niklas Knutsson  <nq@altern.org>

	* Fix bracket madness breaking unbrackened division (!)
	* About dialog

2003-08-14  Niklas Knutsson  <nq@altern.org>

	* Fix loading of argument names for builtin functions
	* Do not add argument names in code for builtin functions, read from definitions file instead
	* Fix crash when creating new unit
	* Disable OK button for editing global definitions until structure is sorted out
	* Beautify dialogs
	* Functions, variables and units buttons in main window
	* Sorting menus
	* Tree lists implemented for units, variables and functions dialogs
	* Submenus implemented for unit, variable and function menus
	* Connect "convert to"-button in unit managaer to new conversion system
	* Complete set of SI units
	* Various fixes

2003-08-13  Niklas Knutsson  <nq@altern.org>

	* Remove duplicate functions
	* Do not save unchanged global definitions in users definitions files
	* Selectable prefix in result
	* Fully functional unit conversion!

2003-08-12  Niklas Knutsson  <nq@altern.org>

	* Interpret "apple" as an unknown variable named apple
	* Add base conversion dialog
	* Beautify units dialog
	* Store pointer to unit in GUI to simplify the Unit/ComplexUnit mess
	* Enable editing/creation of composite units
	* New Greatest Common Divisor (gcd) function
	* First try at differentiation
	* Fix division

2003-08-11  Niklas Knutsson  <nq@altern.org>

	* Beautify insert function dialog
	* Populate category combos
	* Turn base unit combo into entry as it probably is not a good idea to fill the combo with all units
	* Gladeify the variable and function edit dialogs hidden callbacks.cc (gladeification finished?)
	* Beautification of dialogs
	* Huge gladeification of signals and widget references

2003-08-10  Sven Herzberg  <herzi@gnome-de.org>

	* data/qalculate.glade: don't know what exactly, but i'm sure that we
	got rid of one c dialog more
	* src/callbacks.cc:
	* src/interface.cc:

2003-08-10  Niklas Knutsson  <nq@altern.org>

	* Use <sup></sup> for all exponents for consistency
	* New elegant and intelligent sorting, not only for internal purposes
	* Updated swedish translation.
	* Gettextized error messages.
	* Updaterad Calculator::error().
	* Only enable prefixes in front of units
	* Fix disable/enable variables/functions/units/unknown
	* Found true evil in Manager::sort(). This should solve many problems. :-)
	* Enable binary output for larger numbers
	* Fix nested functions
	* Fix prefix followed be unit
	* Fix functions without parenthesis
	* correct widget name (units_option_menu_to_unit)
	* handle long result by making the window not resizable and the result label wrap

2003-08-09  Niklas Knutsson  <nq@altern.org>

	* Swedish translation
	* More strings to translate
	* Binary output
	* Fix BASE()
	* Fix prefixes in expression
	* Added ability to disable unknown variables
	* Support unsolved function -- now log(x) returns log(x) instead of the result of log(0)
	* Fix prefix display mode (only use in front of units to avoid confusion and support exponents)

2003-08-08  Niklas Knutsson  <nq@altern.org>

	* Set LC_NUMERIC to "C" to make strold() happy
	* Minor restructuring in preparation for different decimal points
	* Comment out debug output. Now (x+y)^50 takes 1 instead of 100 seconds.
	  For those interested, the result of (x+y)^100 is 24287 pixels wide...

2003-08-08  Sven Herzberg  <herzi@gnome-de.org>

	* data/qalculate.glade,
	* src/interface.cc: glade-ified the preferences dialog

2003-08-08  Sven Herzberg  <herzi@gnome-de.org>

	* data/qalculate.glade,
	* src/interface.cc: glade-ified the units dialog
	* po/de.po: updated translation

2003-08-08  Sven Herzberg  <herzi@gnome-de.org>

	* src/interface.cc: removed unneccessary variables

2003-08-08  Sven Herzberg  <herzi@gnome-de.org>

	* data/qalculate.glade,
	* src/interface.cc: glade-ified the variables dialog

2003-08-08  Sven Herzberg  <herzi@gnome-de.org>

	* src/interface.cc: removed unneccessary variables

2003-08-08  Sven Herzberg  <herzi@gnome-de.org>

	* data/qalculate.glade,
	* src/callbacks.cc,
	* src/interface.cc: finished moving the menus

2003-08-08  Sven Herzberg  <herzi@gnome-de.org>

	* data/qalculate.glade,
	* src/callbacks.cc,
	* src/interface.cc: moving the menus to a (hidden) menubar to
	solve a warning regarding an accelerator group

2003-08-08  Niklas Knutsson  <nq@altern.org>

	* Move generated menus one step up
	* Add finalize() after conversion in callbacks.cc

2003-08-08  Niklas Knutsson  <nq@altern.org>

	* Some more fixes that I do not remember
	* Fix (x+y)^(6+n)
	* Fix kWs = W^2 * s^2 in Calculator.cc
	* Do not convert units during the whole calculation, do it in finalize() afterwards instead
	* Make units work even better.
	* Move OCT, HEX, BIN and BASE functions to category "Number Bases"

2003-08-08  Sven Herzberg  <herzi@gnome-de.org>

	* configure.in: added -Wall stuff again (was just a typo)
	* src/interface.cc: removed some unneccessary variables from
	create_window

2003-08-08  Sven Herzberg  <herzi@gnome-de.org>

	* data/qalculate.glade: includes the complete main window now
	* src/callbacks.cc: removed the GtkHSeparator (the're not used anymore)
	* src/interface.cc: moved the whole main window to the glade file

2003-08-07  Sven Herzberg  <herzi@gnome-de.org>

	* data/qalculate.glade: added the expression menu and the result menu
	* po/de.po: updated translation
	* src/callbacks.cc: glade updates
	* src/interface.cc: glade updates

2003-08-07  Sven Herzberg  <herzi@gnome-de.org>

	* src/interface.cc,
	* src/interface.h,
	* src/main.cc: as the return value of create_window was only used to
	display the widget, made create_window a void method and display
	widget from there

2003-08-07  Sven Herzberg  <herzi@gnome-de.org>

	* configure.in: added libglade dependency
	* data/Makefile.am: added glade file
	* data/qalculate.glade: user interface definition
	* src/callbacks.cc: removed the extern GtkWidget *window
	* src/interface.cc: started migration to glade
	* src/interface.h: started migration to glade
	* src/main.cc: started migration to glade

2003-08-07  Sven Herzberg  <herzi@gnome-de.org>

	* .cvsignore: cvs update has less warnings now
	* configure.in: added de to ALL_LINGUAS
	* data/qalculate.desktop.in: fixed the starter
	* po/.cvsignore: cvs update has less warnings now
	* po/de.po: updated german translation

2003-08-07  Sven Herzberg  <herzi@gnome-de.org>

	* data/Makefile.am: added fixes for kde pre-3.2 (aka stable)

2003-08-07  Sven Herzberg  <herzi@gnome-de.org>

	* .cvsignore: cvs update has less warnings now
	* configure.in: some beautification (will fix -Wall later this day)
	* data/.cvsignore: cvs update has less warnings now
	* data/Makefile.am: added desktop file
	* data/qalculate.desktop.in: desktop file template
	* po/.cvsignore: cvs update has less warnings now
	* po/POTFILES.in: added data/qalculate.desktop
	* po/de.po: added german translation

2003-08-07  Sven Herzberg  <herzi@gnome-de.org>

	* src/main.cc: some beautification
	* src/main.h: made enums from #defines (are the values relevant?)

2003-08-06  Niklas Knutsson  <nq@altern.org>

	* Removed some debug output
	* Fix (x+y)^5, but unfortunately not (x+y)^6...
	* Even better unit conversion.
	* Change Ctrl+V to Ctrl+M for manage variables

2003-08-06  Sven Herzberg  <herzi@gnome-de.org>

	* Makefile.am: make dist works now
	* configure.in: added data/Makefile.am
	* data/.cvsignore: cvs update has less warnings now
	* data/Makefile.am: make dist works now, make install too
	* po/.cvsignore: cvs update has less warnings now

2003-08-06  Sven Herzberg  <herzi@gnome-de.org>

	* .cvsignore: cvs update has less warnings now
	* Makefile.am: added data as subdir
	* acconfig.h: removed (templates are deprecated)
	* configure.in: added libtool
	* data/Makefile.am: added config file installation
	* po/.cvsignore: cvs update has less warnings now
	* src/.cvsignore: cvs update has less warnings now
	* src/Makefile.am: switched to libtool now
	* src/calclib/.cvsignore: cvs update has less warnings now
	* src/calclib/Makefile.am: using libtool now

2003-08-04  Niklas Knutsson  <nq@altern.org>

	* Optional arguments for functions
	* More functions...
	* Implemented if...then...else function
	* "config" -> "definition"
	* Added Execute button to insert function dialog
	* Added some financial functions