VERB_code_2.3
erf.h
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1 
8 #include <math.h>
9 
11 #define ITMAX 100000
12 #define EPS 3.0e-7
14 #define FPMIN 1.0e-30
16 
17 //void nrerror(const char *msg);
18 
19 double gammln(double xx);
20 
21 double gammp(double a, double x);
22 
23 double gammq(double a, double x);
24 
25 void gser(double *gamser, double a, double x, double *gln);
26 
27 void gcf(double *gammcf, double a, double x, double *gln);
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29 double erf(double x);
void gser(double *gamser, double a, double x, double *gln)
Definition: erf.cpp:74
double gammln(double xx)
Returns the value ln[?(xx)] for xx > 0.
Definition: erf.cpp:23
void gcf(double *gammcf, double a, double x, double *gln)
Returns the incomplete gamma function Q(a, x) evaluated by its continued fraction representation as g...
Definition: erf.cpp:103
double gammp(double a, double x)
Returns the incomplete gamma function P(a, x).
Definition: erf.cpp:39
double erf(double x)
Returns the error function erf(x).
Definition: erf.cpp:137
double gammq(double a, double x)
Returns the incomplete gamma function Q(a, x) ? 1 ? P(a, x).
Definition: erf.cpp:56