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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);

 

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), sinh(3)

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Index

NAME

SYNOPSIS

DESCRIPTION

CONFORMING TO

SEE ALSO