1CCOS(3)                    Linux Programmer's Manual                   CCOS(3)
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NAME

6       ccos, ccosf, ccosl - complex cosine function
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SYNOPSIS

9       #include <complex.h>
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11       double complex ccos(double complex z);
12       float complex ccosf(float complex z);
13       long double complex ccosl(long double complex z);
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15       Link with -lm.
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DESCRIPTION

18       The complex cosine function is defined as:
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20           ccos(z) = (exp(i * z) + exp(-i * z)) / 2
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VERSIONS

23       These functions first appeared in glibc in version 2.1.
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CONFORMING TO

26       C99.
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SEE ALSO

29       cabs(3), csin(3), ctan(3), complex(7)
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COLOPHON

32       This  page  is  part of release 3.22 of the Linux man-pages project.  A
33       description of the project, and information about reporting  bugs,  can
34       be found at http://www.kernel.org/doc/man-pages/.
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38                                  2008-08-11                           CCOS(3)
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