NAME    [Toc]    [Back]

       tanh - hyperbolic tangent function

SYNOPSIS    [Toc]    [Back]

       #include <math.h>

       double tanh(double x);

DESCRIPTION    [Toc]    [Back]

       The  tanh()  function  returns  the  hyperbolic	tangent of x, which is
       defined mathematically as sinh(x) / cosh(x).

CONFORMING TO    [Toc]    [Back]

       SVID 3, POSIX, BSD 4.3, ISO 9899

SEE ALSO    [Toc]    [Back]

       acosh(3), asinh(3), atanh(3), cosh(3), sinh(3)



				  1993-06-13			       TANH(3)