tan

Sommaire

NAME

tan, tanf, tanl - tangent function

SYNOPSIS

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

 float tanf(float x);
 

 long double tanl(long double x);

Link with -lm.

DESCRIPTION

The 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)