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Command: erf | Section: 3 | Source: UNIX v10 | File: erf.3
ERF(3M) ERF(3M)
delim $$
NAME
erf, erfc - error function
SYNOPSIS
#include <math.h>
double erf(x)
double x;
double erfc(x)
double x;
DESCRIPTION
These functions calculate the error function erf(x) = (2/sqrt(pi)) in-
tegral from 0 to x exp(t^2) dt and the complementary error function
erfc(x) = 1 - erf(x). The error criterion for both erf and erfc is
relative.
DIAGNOSTICS
There are no error returns. delim off
ERF(3M)