tanh

TANH(3)                    Linux Programmer's Manual                   TANH(3)



NAME
       tanh - hyperbolic tangent function

SYNOPSIS
       #include <math.h>

       double tanh(double x);

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

CONFORMING TO
       SVID 3, POSIX, BSD 4.3, ISO 9899 (C99)

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



                                  1993-06-13                           TANH(3)