tan

NAME

tan, tanf, tanl - tangent function

SYNOPSIS

#include <math.h>
 I double tan(double  x );

I float tanf(float x );
I long double tanl(long double x );
Link with -lm.

DESCRIPTION

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

CONFORMING TO

SVr4, 4.3BSD, C89. The float and long double variants are C99 requirements.

SEE ALSO

acos(3), asin(3), atan(3), atan2(3), cos(3), ctan(3), sin(3)