erfcl(3) -- Linux man page
NAME
erf, erff, erfl, erfc, erfcf, erfcl - error function and complementary error function
SYNOPSIS
#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);
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, C99.
The float and long double variants are requirements of C99.
SEE ALSO
exp(3)
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