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

NAME
     tanh, tanhf - hyperbolic tangent functions



SYNOPSIS
     #include <math.h>

     double
     tanh(double x);

     float
     tanhf(float x);

DESCRIPTION
     The tanh() and tanhf() functions compute the hyperbolic tangent of x. For
     a discussion of error due to roundoff, see math(3).

RETURN VALUES
     The tanh() function returns 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'').

OpenBSD 2.6                       May 2, 1991                                1