cosh(), coshf()

Compute the hyperbolic cosine

Synopsis:

#include <math.h>

double cosh( double x );

float coshf( float x );

Library:

libm

Description:

These functions compute the hyperbolic cosine (specified in radians) of x. A range error occurs if the magnitude of x is too large.

Returns:

The hyperbolic cosine of x.

Examples:

#include <stdio.h>
#include <math.h>
#include <stdlib.h>

int main( void )
{
    printf( "%f\n", cosh(.5) );

    return EXIT_SUCCESS;
}

produces the output:

1.127626

Classification:

ANSI

See also:

errno, sinh(), tanh()