TAN(3) Linux Programmer's Manual TAN(3)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 radi‐
ans.
CONFORMING TO
SVr4, 4.3BSD, C89. The float and long double variants are C99 require‐
ments.
SEE ALSOacos(3), asin(3), atan(3), atan2(3), cos(3), ctan(3), sin(3)
2002-07-27 TAN(3)