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.
C99.
SEE ALSO¶
cabs(3), 
cacos(3), 
csin(3), 
ctan(3),
  
complex(7)
COLOPHON¶
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man-pages project. A
  description of the project, information about reporting bugs, and the latest
  version of this page, can be found at
  
http://www.kernel.org/doc/man-pages/.