EN JA
TANH(3)
TANH(3) FreeBSD Library Functions Manual TANH(3)

NAME

tanh, tanhf, tanhlhyperbolic tangent functions

LIBRARY

Math Library (libm, -lm)

SYNOPSIS

#include < math.h>

double
tanh( double x);

float
tanhf( float x);

long double
tanhl( long double x);

DESCRIPTION

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

RETURN VALUES

The tanh(), tanhf(), and the tanhl() functions return the hyperbolic tangent value.

STANDARDS

The tanh() function conforms to ISO/IEC 9899:1990 (“ISO C90”).
August 17, 2013 FreeBSD