redhat man page for tan

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

NAME
       tan - tangent function

SYNOPSIS
       #include <math.h>

       double tan(double x);

DESCRIPTION
       The tan() function returns the tangent of x, where x is given in radians.

CONFORMING TO
       SVID 3, POSIX, BSD 4.3, ISO 9899

SEE ALSO
       acos(3), asin(3), atan(3), atan2(3), cos(3), sin(3)

								    1993-06-08								    TAN(3)