Name

ccosh, ccoshf, ccoshl — complex hyperbolic cosine

Synopsis

        #include <complex.h>
double complex ccosh( double complex z);
 
float complex ccoshf( float complex z);
 
long double complex ccoshl( long double complex z);
 
[Note] Note

Link with −lm.

DESCRIPTION

These functions calculate the complex hyperbolic cosine of z.

The complex hyperbolic cosine function is defined as:

    ccosh(z) = (exp(z)+exp(−z))/2

VERSIONS

These functions first appeared in glibc in version 2.1.

CONFORMING TO

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

SEE ALSO

cabs(3), cacosh(3), csinh(3), ctanh(3), complex(7)

COLOPHON

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  Copyright 2002 Walter Harms (walter.harmsinformatik.uni-oldenburg.de)

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