SIN(3) Linux Programmer's Manual SIN(3) NAME sin - sine function SYNOPSIS #include <math.h> double sin(double x); DESCRIPTION The sin() function returns the sine of x, where x is given in radians. RETURN VALUE The sin() function returns a value between -1 and 1. CONFORMING TO SVID 3, POSIX, BSD 4.3, ISO 9899 SEE ALSO acos(3), asin(3), atan(3), atan2(3), cos(3), tan(3) 1993-06-08 SIN(3)