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Mathematical Library Functionstanh(3M)


NAME

 tanh - hyperbolic tangent function

SYNOPSIS

 
cc [ flag ... ] file ... -lm [ library ... ]
#include <math.h>
double tanh(double x);

DESCRIPTION

 

The tanh() function computes the hyperbolic tangent of x.

RETURN VALUES

 

Upon successful completion, tanh() returns the hyperbolic tangent of x.

If x is NaN, NaN is returned.

ATTRIBUTES

 

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPEATTRIBUTE VALUE
MT-LevelMT-Safe

SEE ALSO

 

atanh(3M), isnan(3M), tan(3M), attributes(5)


SunOS 5.9Go To TopLast Changed 29 Dec 1996

 
      
      
Copyright 2002 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms.