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manpages-dev_3.35-0.1ubuntu1_all **NAME**

cerf, cerff, cerfl, cerfc, cerfcf, cerfcl - complex error function

**SYNOPSIS**

**#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__**);**
Link with __-lm__.

**DESCRIPTION**

The (unimplemented) function **cerf**() is the complex version of the error
function. erf(z) = 2/sqrt(pi) * integral from 0 to z of exp(-t*t) dt.
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 at version 2.12.

**SEE** **ALSO**

**erf**(3), **complex**(7)

**COLOPHON**

This page is part of release 3.35 of the Linux __man-pages__ project. A
description of the project, and information about reporting bugs, can
be found at http://man7.org/linux/man-pages/.
2010-09-12 CERF(3)