File: lex_z.htm

package info (click to toggle)
golly 3.3-1.1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm, forky, sid, trixie
  • size: 20,176 kB
  • sloc: cpp: 72,638; ansic: 25,919; python: 7,921; sh: 4,245; objc: 3,721; java: 2,781; xml: 1,362; makefile: 530; javascript: 279; perl: 69
file content (164 lines) | stat: -rwxr-xr-x 7,928 bytes parent folder | download | duplicates (3)
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
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html lang="en">
<head>
<title>Life Lexicon (Z)</title>
<meta name="author" content="Stephen A. Silver">
<meta name="description" content="Part of Stephen Silver's Life Lexicon.">
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<link href="lifelex.css" rel="stylesheet" type="text/css">
<link rel="begin" type="text/html" href="lex.htm" title="Life Lexicon">
<base target="_top">
</head>
<body bgcolor="#FFFFCE">

<center><A HREF="lex.htm">Introduction</A> | <A HREF="lex_bib.htm">Bibliography</A></center></center>
<hr>
<center>
<b>
<A HREF="lex_1.htm">1-9</A> |
<A HREF="lex_a.htm">A</A> |
<A HREF="lex_b.htm">B</A> |
<A HREF="lex_c.htm">C</A> |
<A HREF="lex_d.htm">D</A> |
<A HREF="lex_e.htm">E</A> |
<A HREF="lex_f.htm">F</A> |
<A HREF="lex_g.htm">G</A> |
<A HREF="lex_h.htm">H</A> |
<A HREF="lex_i.htm">I</A> |
<A HREF="lex_j.htm">J</A> |
<A HREF="lex_k.htm">K</A> |
<A HREF="lex_l.htm">L</A> |
<A HREF="lex_m.htm">M</A> |
<A HREF="lex_n.htm">N</A> |
<A HREF="lex_o.htm">O</A> |
<A HREF="lex_p.htm">P</A> |
<A HREF="lex_q.htm">Q</A> |
<A HREF="lex_r.htm">R</A> |
<A HREF="lex_s.htm">S</A> |
<A HREF="lex_t.htm">T</A> |
<A HREF="lex_u.htm">U</A> |
<A HREF="lex_v.htm">V</A> |
<A HREF="lex_w.htm">W</A> |
<A HREF="lex_x.htm">X</A> |
<A HREF="lex_y.htm">Y</A> |
<A href="lex_z.htm">Z</A></b>

</center>
<hr>
<p><a name=zebrastripes>:</a><b>zebra stripes</b> (p1) A stable agar consisting of alternating bands of
live and dead cells. Known <a href="lex_s.htm#spacefiller">spacefillers</a> and many <a href="lex_g.htm#grayship">gray ships</a>
create patches of this agar. It is also the medium through which
<a href="lex_w.htm#withthegrain">with the grain</a> and <a href="lex_a.htm#againstthegrain">against the grain</a> <a href="lex_n.htm#negativespaceship">negative spaceships</a>
travel. Many simple stabilizations of the boundaries of finite
regions of this agar are known, as shown below.
<center><table cellspacing=0 cellpadding=0><tr><td><pre><a href="lexpatt:..OO.......................$..O........................$....O..O..O..O..O..O..O....$...OOOOOOOOOOOOOOOOOOOO....$..O........................$...OOOOOOOOOOOOOOOOOO......$.....................O.....$.OOOOOOOOOOOOOOOOOOOO......$O..........................$.OOOOOOOOOOOOOOOOOOOOOO....$.......................O.OO$.OOOOOOOOOOOOOOOOOOOO..O.OO$O....................O.O...$.OOOOOOOOOOOOOOOOOOOO..O...$.......................OO..$...OOOOOOOOOOOOOOOOOO......$..O..................O.....$...OOOOOOOOOOOOOOOOOO......$...........................$.....OO..OO.O.OOOO.OO......$.....OO..O.OO.O..O.OO......$"
>..OO.......................
..O........................
....O..O..O..O..O..O..O....
...OOOOOOOOOOOOOOOOOOOO....
..O........................
...OOOOOOOOOOOOOOOOOO......
.....................O.....
.OOOOOOOOOOOOOOOOOOOO......
O..........................
.OOOOOOOOOOOOOOOOOOOOOO....
.......................O.OO
.OOOOOOOOOOOOOOOOOOOO..O.OO
O....................O.O...
.OOOOOOOOOOOOOOOOOOOO..O...
.......................OO..
...OOOOOOOOOOOOOOOOOO......
..O..................O.....
...OOOOOOOOOOOOOOOOOO......
...........................
.....OO..OO.O.OOOO.OO......
.....OO..O.OO.O..O.OO......
</a></pre></td></tr></table></center>
<p><a name=zhexomino>:</a><b>Z-hexomino</b> The following <a href="lex_h.htm#hexomino">hexomino</a>. The Z-hexomino features in the
<a href="lex_p.htm#pentoad">pentoad</a>, and also in <a href="lex_a.htm#achimsp144">Achim's p144</a>.
<center><table cellspacing=0 cellpadding=0><tr><td><pre><a href="lexpatt:OO.$.O.$.O.$.OO$"
>OO.
.O.
.O.
.OO
</a></pre></td></tr></table></center>
<p><a name=zoneofinfluence>:</a><b>zone of influence</b> The set of cells on which a chosen cell or pattern
can potentially exert an influence in a given number of generations
<i>N</i>. If <i>N</i> is not specified it is generally taken to be one, in which
case the zone of influence simply coincides with the Moore
neighbourhood of the cell or pattern.
<p>The set for <i>N</i> generations consists of all the cells to which at
least <i>N</i> paths of length <i>N</i> can be traced from the cell(s) in question.
Contrast this with the range-<i>N</i> Moore neighbourhood, which consists of
all cells to which at least one path of length <i>n</i> can be traced.
<p><a name=zpentomino>:</a><b>Z-pentomino</b> Conway's name for the following <a href="lex_p.htm#pentomino">pentomino</a>, which
rapidly dies.
<center><table cellspacing=0 cellpadding=0><tr><td><pre><a href="lexpatt:OO.$.O.$.OO$"
>OO.
.O.
.OO
</a></pre></td></tr></table></center>
<p><a name=zweiback>:</a><b>zweiback</b> (p30) An oscillator in which two <a href="lex_h.htm#hwvolcano">HW volcanoes</a> <a href="lex_h.htm#hassle">hassle</a> a
<a href="lex_l.htm#loaf">loaf</a>. This was found by Mark Niemiec in February 1995. A smaller
version using Scot Ellison's reduced HW volcano is shown below.
<center><table cellspacing=0 cellpadding=0><tr><td><pre><a href="lexpatt:..........O..............................$........OOOOO.................O..........$.......O.....O..............OOOOO........$.......O..OO.O.............O.....O.......$...O.OOO.O.O.OO............O.OO..O.......$...OO....O................OO.O.O.OOO.O...$......OO.OO....................O....OO...$.OOOOO.O.O..O.................OO.OO......$O......O...O.O..............O..O.O.OOOOO.$OO..OOOOO.OO.O.............O.O...O......O$............OO.............O.OO.OOOOO..OO$.....OO....OOO.............OO............$.....OO....OOO.....OO......OOO....OO.....$............OO....O..O.....OOO....OO.....$OO..OOOOO.OO.O.....O.O.....OO............$O......O...O.O......O......O.OO.OOOOO..OO$.OOOOO.O.O..O..............O.O...O......O$......OO.OO.................O..O.O.OOOOO.$...OO....O....................OO.OO......$...O.OOO.O.O.OO................O....OO...$.......O..OO.O............OO.O.O.OOO.O...$.......O.....O.............O.OO..O.......$........OOOOO..............O.....O.......$..........O.................OOOOO........$..............................O..........$"
>..........O..............................
........OOOOO.................O..........
.......O.....O..............OOOOO........
.......O..OO.O.............O.....O.......
...O.OOO.O.O.OO............O.OO..O.......
...OO....O................OO.O.O.OOO.O...
......OO.OO....................O....OO...
.OOOOO.O.O..O.................OO.OO......
O......O...O.O..............O..O.O.OOOOO.
OO..OOOOO.OO.O.............O.O...O......O
............OO.............O.OO.OOOOO..OO
.....OO....OOO.............OO............
.....OO....OOO.....OO......OOO....OO.....
............OO....O..O.....OOO....OO.....
OO..OOOOO.OO.O.....O.O.....OO............
O......O...O.O......O......O.OO.OOOOO..OO
.OOOOO.O.O..O..............O.O...O......O
......OO.OO.................O..O.O.OOOOO.
...OO....O....................OO.OO......
...O.OOO.O.O.OO................O....OO...
.......O..OO.O............OO.O.O.OOO.O...
.......O.....O.............O.OO..O.......
........OOOOO..............O.....O.......
..........O.................OOOOO........
..............................O..........
</a></pre></td></tr></table></center>
<hr>
<center>
<b>
<a href="lex_1.htm">1-9</a> |
<a href="lex_a.htm">A</a> |
<a href="lex_b.htm">B</a> |
<a href="lex_c.htm">C</a> |
<a href="lex_d.htm">D</a> |
<a href="lex_e.htm">E</a> |
<a href="lex_f.htm">F</a> |
<a href="lex_g.htm">G</a> |
<a href="lex_h.htm">H</a> |
<a href="lex_i.htm">I</a> |
<a href="lex_j.htm">J</a> |
<a href="lex_k.htm">K</a> |
<a href="lex_l.htm">L</a> |
<a href="lex_m.htm">M</a> |
<a href="lex_n.htm">N</a> |
<a href="lex_o.htm">O</a> |
<a href="lex_p.htm">P</a> |
<a href="lex_q.htm">Q</a> |
<a href="lex_r.htm">R</a> |
<a href="lex_s.htm">S</a> |
<a href="lex_t.htm">T</a> |
<a href="lex_u.htm">U</a> |
<a href="lex_v.htm">V</a> |
<a href="lex_w.htm">W</a> |
<a href="lex_x.htm">X</a> |
<a href="lex_y.htm">Y</a> |
<A href="lex_z.htm">Z</A></b>

</center>
<hr>
</body>