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# cerf

Complex error function

## Interface

#include <complex.h> double complex cerf (double complex z)float complex cerff (float complex z)long double complex cerfl (long double complex z)double complex cerfc (double complex z)float complex cerfcf (float complex z)long double complex cerfcl (long double complex z)

## Description

The function cerf is the complex version of the error function, defined through:

${\rm&space;erf}(z)&space;:=&space;\frac{2}{\sqrt{\pi}}&space;\int_0^z&space;\exp&space;\left(-t^2\right)&space;\,{\rm&space;d}t.$

The function cerfc is defined as cerfc(z) = 1 - cerf(z).

## Conforming To

The function names are reserved for future use in C99.

## Availability

Not yet in glibc, as of version 2.4.