TANH(3) BSD Library Functions Manual TANH(3)
NAME
tanh -- hyperbolic tangent function
SYNOPSIS
#include <math.h>
double
tanh(double x);
long double
tanhl(long double x);
float
tanhf(float x);
DESCRIPTION
The tanh() function computes the hyperbolic tangent of x.
SPECIAL VALUES
tanh(+-0) returns +-0.
tanh(+-infinity) returns +-1.
SEE ALSO
acos(3), asin(3), atan(3), atan2(3), cos(3), cosh(3), sin(3), sinh(3), tan(3), math(3)
STANDARDS
The tanh() function conforms to ISO/IEC 9899:2011.
BSD
December 11, 2006 BSD