TANH(3)                 System Library Functions Manual                TANH(3)

NAME
     tanh, tanhf - hyperbolic tangent functions

SYNOPSIS
     #include 

     double
     tanh(double x);

     float
     tanhf(float x);

DESCRIPTION
     The tanh() function computes the hyperbolic tangent of x.  The tanhf()
     function is a single precision version of tanh().  For a discussion of
     error due to roundoff, see math(3).

RETURN VALUES
     The tanh() and tanhf() functions return the hyperbolic tangent value.

SEE ALSO
     acos(3), asin(3), atan(3), atan2(3), cos(3), cosh(3), math(3), sin(3),
     sinh(3), tan(3)

STANDARDS
     The tanh() function conforms to ANSI X3.159-1989 (``ANSI C'').

Interix                           May 31 2007                          Interix