overby.me
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1.\" Copyright (c) 2006 Apple Computer
2.\"
3.Dd December 11, 2006
4.Dt CONJ 3
5.Os BSD 4
6.Sh NAME
7.Nm conj
8.Nd complex conjugation function
9.Sh SYNOPSIS
10.Fd #include <complex.h>
11.Ft double complex
12.Fn conj "double complex z"
13.Ft long double complex
14.Fn conjl "long double complex z"
15.Ft float complex
16.Fn conjf "float complex z"
17.Sh DESCRIPTION
18.Fn conj "z"
19computes the complex conjugate of a complex floating-point number
20.Fa z .
21.Pp
22If
23.Fa z
24= x+iy, then
25.Fn conj "z"
26= x-iy.
27.Sh NOTES
28If y is NaN, conj(x+yi) = x-yi; the sign bit of the NaN has been changed.
29.Sh SEE ALSO
30.Xr complex 3
31.Sh STANDARDS
32The
33.Fn conj
34function conforms to ISO/IEC 9899:1999(E).