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

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   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/.

                              2015-04-19                           CCOS(3)

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