sin, sinf, sinl - Sine

Definition	#include <math.h> double sin(double x); float sinf(float x); (C11) long double sinl(long double x); (C11) These functions calculate the trigonometric sine function for the floating-point number x, specifying the angle in radians.
Return val. Example	sin(x)      a floating-point number in the interval [-1.0, +1.0]. The following program outputs the sine of values in the range -pi to +pi. #include <math.h> #include <stdio.h> #define pi 3.14159265358979 int main(void) { double x; for (x = -pi; x <= pi; x = x + pi/4.) printf(" sin(%1.2f) = %.4f \n ", x, sin(x)); return 0; }
See also	cos, asin, sinh