ERF (3)
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
SEE ALSO
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