TANH

Section: Linux Programmer's Manual (3)
Updated: 2002-07-27
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NAME

tanh, tanhf, tanhl - hyperbolic tangent function  

SYNOPSIS

#include <math.h>

double tanh(double x);

float tanhf(float x);
long double tanhl(long double x);

Link with -lm.  

DESCRIPTION

The tanh() function returns the hyperbolic tangent of x, which is defined mathematically as sinh(x) / cosh(x).  

CONFORMING TO

SVr4, 4.3BSD, C89. The float and long double variants are C99 requirements.  

SEE ALSO

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


 

Index

NAME
SYNOPSIS
DESCRIPTION
CONFORMING TO
SEE ALSO

linux.jgfs.net manual pages