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)


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