.\"	$OpenBSD: cpow.3,v 1.2 2011/12/24 08:46:48 jmc Exp $
.\"
.\" Copyright (c) 2011 Martynas Venckus <martynas@openbsd.org>
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.Dd $Mdocdate: December 24 2011 $
.Dt CPOW 3
.Os
.Sh NAME
.Nm cpow ,
.Nm cpowf ,
.Nm cpowl
.Nd complex power functions
.Sh SYNOPSIS
.Fd #include <complex.h>
.Ft double complex
.Fn cpow "double complex x" "double complex z"
.Ft float complex
.Fn cpowf "float complex x" "float complex z"
.Ft long double complex
.Fn cpowl "long double complex x" "long double complex z"
.Sh DESCRIPTION
The
.Fn cpow ,
.Fn cpowf
and
.Fn cpowl
functions compute the complex number
.Fa x
raised to the complex power
.Fa z ,
with a branch cut along the negative real axis for the first argument.
.Sh RETURN VALUES
The
.Fn cpow ,
.Fn cpowf
and
.Fn cpowl
functions return the complex number
.Fa x
raised to the complex power
.Fa z .
.Sh SEE ALSO
.Xr cexp 3 ,
.Xr clog 3
.Sh STANDARDS
The
.Fn cpow ,
.Fn cpowf
and
.Fn cpowl
functions conform to
.St -isoC-99 .