1.\" $OpenBSD: creal.3,v 1.2 2013/06/05 03:40:26 tedu Exp $ 2.\" 3.\" Copyright (c) 2011 Martynas Venckus <martynas@openbsd.org> 4.\" 5.\" Permission to use, copy, modify, and distribute this software for any 6.\" purpose with or without fee is hereby granted, provided that the above 7.\" copyright notice and this permission notice appear in all copies. 8.\" 9.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16.\" 17.Dd $Mdocdate: June 5 2013 $ 18.Dt CREAL 3 19.Os 20.Sh NAME 21.Nm creal , 22.Nm crealf , 23.Nm creall 24.Nd complex real functions 25.Sh SYNOPSIS 26.In complex.h 27.Ft double 28.Fn creal "double complex z" 29.Ft float 30.Fn crealf "float complex z" 31.Ft long double 32.Fn creall "long double complex z" 33.Sh DESCRIPTION 34The 35.Fn creal , 36.Fn crealf 37and 38.Fn creall 39functions compute the real part of 40.Fa z . 41.Sh RETURN VALUES 42The 43.Fn creal , 44.Fn crealf 45and 46.Fn creall 47functions return the real part of 48.Fa z . 49.Sh SEE ALSO 50.Xr carg 3 51.Sh STANDARDS 52The 53.Fn creal , 54.Fn crealf 55and 56.Fn creall 57functions conform to 58.St -isoC-99 . 59