ERF
Section: Linux Programmer's Manual (3)
Updated: June 25, 1993
NAME
erf, erfc - error function and complementary error function
SYNOPSIS
#include <math.h>
double erf(double x);
double erfc (double x);
DESCRIPTION
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).
CONFORMING TO
SVID 3, BSD 4.3
SEE ALSO
exp(3)