Originální popis anglicky:
erf, erff, erfl, erfc, erfcf, erfcl - error function and complementary error
function
Návod, kniha: Linux Programmer's Manual
#include <math.h>
double erf(double x);
float erff(float x);
long double erfl(long double x);
double erfc(double x);
float erfcf(float x);
long double erfcl(long double x);
Link with -lm.
The
erf() function returns the error function of
x; defined as
- erf(x) = 2/sqrt(pi)* integral from 0 to x of exp(-t*t)
dt
The
erfc() function returns the complementary error function of
x,
that is 1.0 - erf(x).
SVID 3, BSD 4.3, C99. The float and long double variants are requirements of
C99.
exp(3)
