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RedHat 9 (Linux i386) - man page for tanh (redhat section 3)

TANH(3) 			    Linux Programmer's Manual				  TANH(3)

NAME
       tanh - hyperbolic tangent function

SYNOPSIS
       #include <math.h>

       double tanh(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)

SEE ALSO
       acosh(3), asinh(3), atanh(3), cosh(3), sinh(3)

					    1993-06-13					  TANH(3)


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