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


SEE ALSO

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








































                          June 13, 1993                         1