2 .\" Copyright 2002 Walter Harms (walter.harms@informatik.uni-oldenburg.de)
4 .\" SPDX-License-Identifier: GPL-1.0-or-later
6 .TH ccos 3 (date) "Linux man-pages (unreleased)"
8 ccos, ccosf, ccosl \- complex cosine function
11 .RI ( libm ", " \-lm )
14 .B #include <complex.h>
16 .BI "double complex ccos(double complex " z );
17 .BI "float complex ccosf(float complex " z );
18 .BI "long double complex ccosl(long double complex " z );
21 These functions calculate the complex cosine of
24 The complex cosine function is defined as:
28 ccos(z) = (exp(i * z) + exp(\-i * z)) / 2
32 For an explanation of the terms used in this section, see
38 Interface Attribute Value
45 T} Thread safety MT-Safe