1 .\" Copyright 2002 Walter Harms (walter.harms@informatik.uni-oldenburg.de)
3 .\" %%%LICENSE_START(GPL_NOVERSION_ONELINE)
4 .\" Distributed under GPL
7 .TH CCOS 3 2008-08-11 "" "Linux Programmer's Manual"
9 ccos, ccosf, ccosl \- complex cosine function
11 .B #include <complex.h>
13 .BI "double complex ccos(double complex " z ");"
15 .BI "float complex ccosf(float complex " z ");"
17 .BI "long double complex ccosl(long double complex " z ");"
21 The complex cosine function is defined as:
24 ccos(z) = (exp(i * z) + exp(\-i * z)) / 2
27 These functions first appeared in glibc in version 2.1.
37 This page is part of release 3.68 of the Linux
40 A description of the project,
41 information about reporting bugs,
42 and the latest version of this page,
44 \%http://www.kernel.org/doc/man\-pages/.