| .\" Copyright (c) 2004 Stefan Farfeleder |
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| .\" $FreeBSD: src/lib/msun/man/cimag.3,v 1.2 2005/01/13 10:43:01 ru Exp $ |
| .\" |
| .Dd August 7, 2004 |
| .Dt CIMAG 3 |
| .Os |
| .Sh NAME |
| .Nm cimag , cimagf , cimagl , |
| .Nm conj , conjf , conjl , |
| .Nm creal , crealf , creall |
| .Nd "functions to manipulate complex numbers" |
| .Sh LIBRARY |
| .Lb libm |
| .Sh SYNOPSIS |
| .In complex.h |
| .Ft double |
| .Fn cimag "double complex z" |
| .Ft float |
| .Fn cimagf "float complex z" |
| .Ft "long double" |
| .Fn cimagl "long double complex z" |
| .Ft "double complex" |
| .Fn conj "double complex z" |
| .Ft "float complex" |
| .Fn conjf "float complex z" |
| .Ft "long double complex" |
| .Fn conjl "long double complex z" |
| .Ft double |
| .Fn creal "double complex z" |
| .Ft float |
| .Fn crealf "float complex z" |
| .Ft "long double" |
| .Fn creall "long double complex z" |
| .Sh DESCRIPTION |
| Let |
| .Sm off |
| .Fa a + b * Em i |
| .Sm on |
| denote the complex number |
| .Fa z . |
| .Pp |
| The |
| .Fn cimag |
| functions return the imaginary part |
| .Fa b . |
| .Pp |
| The |
| .Fn conj |
| functions return the complex conjugate |
| .Sm off |
| .Fa a - b * Em i . |
| .Sm on |
| .Pp |
| The |
| .Fn creal |
| functions return the real part |
| .Fa a . |
| .Sh STANDARDS |
| The |
| .Fn cimag , |
| .Fn conj |
| and |
| .Fn creal |
| functions conform to |
| .St -isoC-99 . |
| .Sh HISTORY |
| The |
| .Fn cimag , |
| .Fn conj |
| and |
| .Fn creal |
| functions first appeared in |
| .Fx 5.3 . |