tanh(), tanhf()

Calculate the hyperbolic tangent

Synopsis:

#include <math.h>

double tanh( double x );

float tanhf( float x );

Library:

libm

Description:

These functions compute the hyperbolic tangent (specified in radians) of x.

When the x argument is large, partial or total loss of significance may occur.

Returns:

The hyperbolic tangent value.

Examples:

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

int main( void )
  {
    printf( "%f\n", tanh(.5) );
    return EXIT_SUCCESS;
  }

produces the output:

0.462117

Classification:

ANSI

See also:

cosh(), errno, sinh()