tan, tanf, tanl - Tangent

Definition	#include <math.h> double tan(double x); float tanf(float x); (C11) long double tanl(long double x); (C11) Tese functions calculate the trigonometric function tangent within the permissible range of floatingpoint numbers. x specifies the angle in radians.
Returnwert	tan(x)	for any valid floating-point number x.
	+/-HUGE_VAL +/-HUGE_VALF +/-HUGE_VALL	depending on the function type and the sign of x, if an overflow occurs. In addition, errno is set to ERANGE (result too large).
Example	The following program outputs the tangent of an input number. #include <math.h> #include <stdio.h> int main(void) { double x; printf("Please enter a number :\n"); scanf("%lf", &x); printf("The tangent of %g is %g \n", x, tan(x)); return 0; }
See also	sin, cos, tanh, atan