SIN(3) Library Functions Manual SIN(3)

sin, sinf
sine function

Math Library (libm, -lm)

#include <math.h>

double
sin(double x);

float
sinf(float x);

The sin() function computes the sine of x (measured in radians). A large magnitude argument may yield a result with little or no significance.

The sin() function returns the sine value.

acos(3), asin(3), atan(3), atan2(3), cos(3), cosh(3), math(3), sinh(3), tan(3), tanh(3)

The sin() function conforms to ANSI X3.159-1989 (“ANSI C89”).

A sin() function appeared in Version 1 AT&T UNIX.
September 2, 2019 NetBSD 9.0