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Linux 2.6 - man page for ccos (linux section 3)

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
       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.

CONFORMING TO
       C99.

SEE ALSO
       cabs(3), cacos(3), csin(3), ctan(3), complex(7)

COLOPHON
       This  page  is  part of release 3.55 of the Linux man-pages project.  A description of the
       project,    and	  information	 about	  reporting    bugs,	can    be    found     at
       http://www.kernel.org/doc/man-pages/.

					    2008-08-11					  CCOS(3)


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