Manpages - ccos.3

ccos, ccosf, ccosl - complex cosine function

  #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.

These functions calculate the complex cosine of z.

The complex cosine function is defined as:

      ccos(z) = (exp(i * z) + exp(-i * z)) / 2

These functions first appeared in glibc in version 2.1.

For an explanation of the terms used in this section, see *attributes*(7).

C99, POSIX.1-2001, POSIX.1-2008.

*cabs*(3), *cacos*(3), *csin*(3), *ctan*(3), *complex*(7)

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