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OpenDarwin 7.2.1 - man page for tanh (opendarwin section 3)

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TANH(3) 			   BSD Library Functions Manual 			  TANH(3)

NAME
     tanh -- hyperbolic tangent function

SYNOPSIS
     #include <math.h>

     double
     tanh(double 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 9899:1999(E).

BSD					November 20, 2002				      BSD
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