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CCOS(3)                    Linux Programmer's Manual                   CCOS(3)
NAME
       ccos, ccosf, ccosl - complex cosine function
SYNOPSIS
       #include <complex.h>
       double complex ccos(double complex z);
       float complex ccosf(float complex z);
       long double complex ccosl(long double complex z);
       Link with -lm.
DESCRIPTION
       These functions calculate the complex cosine of z.
       The complex cosine function is defined as:
           ccos(z) = (exp(i * z) + exp(-i * z)) / 2
VERSIONS
       These functions first appeared in glibc in version 2.1.
ATTRIBUTES
       For   an   explanation   of   the  terms  used  in  this  section,  see
       attributes(7).
       +-------------------------+---------------+---------+
       |Interface                | Attribute     | Value   |
       +-------------------------+---------------+---------+
       |ccos(), ccosf(), ccosl() | Thread safety | MT-Safe |
       +-------------------------+---------------+---------+
CONFORMING TO
       C99, POSIX.1-2001, POSIX.1-2008.
SEE ALSO
       cabs(3), cacos(3), csin(3), ctan(3), complex(7)
COLOPHON
       This page is part of release 4.15 of the Linux  man-pages  project.   A
       description  of  the project, information about reporting bugs, and the
       latest    version    of    this    page,    can     be     found     at
       https://www.kernel.org/doc/man-pages/.
                                  2017-09-15                           CCOS(3)