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TANH

Section: Linux Programmer's Manual (3)
Updated: 2002-07-27
Index Return to Main Contents
 

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

SVID 3, POSIX, BSD 4.3, ISO 9899 (C99). The float and the 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

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Time: 00:12:41 GMT, May 13, 2005





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