Manual Pages  — SIN

sin, sinf, sinl – sine functions

LIBRARY SYNOPSIS DESCRIPTION RETURN VALUES SEE ALSO STANDARDS HISTORY

Math Library (libm, -lm)

#include <math.h>

double
sin(double x);

float
sinf(float x);

long double
sinl(long double x);

The sin(), sinf(), and sinl() functions compute the sine of x (measured in radians). A large magnitude argument may yield a result with little or no significance.

The sin(), sinf(), and sinl() functions return the sine value.

These functions conform to ISO/IEC 9899:1999 ("ISO C99").

The sin() function first appeared in AT&T v1 .