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

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TAN(3)				   BSD Library Functions Manual 			   TAN(3)

NAME
     tan -- tangent function

SYNOPSIS
     #include <math.h>

     double
     tan(double x);

DESCRIPTION
     The tan() function computes the tangent of x (measured in radians).

SPECIAL VALUES
     tan(+-0) returns +-0.

     tan(+-infinity) returns a NaN and raises the "invalid" floating-point exception.

SEE ALSO
     acos(3), asin(3), atan(3), atan2(3), cos(3), cosh(3), sin(3), sinh(3), tanh(3), math(3)

STANDARDS
     The tan() function conforms to ISO/IEC 9899:1999(E).

BSD					November 20, 2002				      BSD
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