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
|
#include <math++/nodes.h>
#include <math++/reader.h>
#include <math++/printer.h>
#include <math++/derive.h>
#include <math++/simplifier.h>
#include <math++/library.h>
#include <math++/utils.h>
#include <math++/matcher.h>
//#include <math++/biginteger.h>
#include <cmath>
#include <iostream>
#include <memory>
int main(int argc, char *argv[]) {
try {
#if 0
#if 0
math::TBigInteger a(1);
math::TBigInteger b(2);
math::TBigInteger c("3");
math::TBigInteger d("3.1415");
math::TBigInteger r(a + b);
std::cout << a << std::endl
<< b << std::endl
<< c << std::endl
<< d << std::endl
<< r << std::endl
<< "--------------------" << std::endl
<< std::endl;
#endif
math::TLibrary<double> library;
library.insert(math::TConstant<double>("e", 2.1718));//M_E));
library.insert(math::TConstant<double>("pi", 3.1415));//M_PI));
library.insert(math::TFunction<double>("sig", "IF(x < 0, -1, 1)"));
library.insert(math::TFunction<double>("fib", "IF(x <= 1, 1, x + fib(x - 1))"));
std::cout << library.function("sig") << std::endl
<< library.function("fib") << std::endl;
math::TFunction<double> f("f", "sig(x)");
std::cout << f << std::endl
<< "\tf(-pi)=" << f.call(-library.value("pi"), library) << std::endl
<< "\tf(+pi)=" << f.call(+library.value("pi"), library) << std::endl;
math::TFunction<double> g("g", "fib(x)");
std::cout << g << std::endl;
for (int n = 1; n <= 5; ++n)
std::cout << "\tg(" << n << ")=" << g.call(n, library) << std::endl;
math::TFunction<double> h("h", "pi^sin(x/e)");
std::cout << h << std::endl
<< "\th(3)=" << h.call(3, library) << std::endl;
#else
#if 1
math::TMatchRegistry<double> FMatchReg;
// "a^2 + 2ab + b^2 + $0" = "(a + b)^2 + $0"
math::TMatch<double> *match = new math::TPlusMatch<double>(
new math::TPowMatch<double>(
new math::TAnyMatch<double>("a"),
new math::TNumMatch<double>(2)
),
new math::TMulMatch<double>(
new math::TNumMatch<double>(2),
new math::TAnyMatch<double>("a"),
new math::TAnyMatch<double>("b"), 0 /* mark end of list */
),
new math::TPowMatch<double>(
new math::TAnyMatch<double>("b"),
new math::TNumMatch<double>(2)
), 0 /* mark end of list */
);
delete match;
#endif
#endif
} catch (const math::EMath& e) {
std::cout << "exception caught: " << e.reason() << std::endl;
return 1;
} catch (const char *AMsg) {
std::cout << "exception caught: " << AMsg << std::endl;
return 2;
} catch (...) {
std::cout << "further exception caught." << std::endl;
return 3;
}
return 0;
}
|
