SIN(3M)                              BSD                               SIN(3M)



NAME
     sin, cos, tan, asin, acos, atan, atan2 - trigonometric functions and
     their inverses

SYNOPSIS
     #include <math.h>

     double sin(x)
     double x;

     double cos(x)
     double x;

     double tan(x)
     double x;

     double asin(x)
     double x;

     double acos(x)
     double x;

     double atan(x)
     double x;

     double atan2(y,x)
     double y,x;

DESCRIPTION
     sin, cos, and tan return trigonometric functions of radian arguments x.

     asin returns the arc sine in the range -pi/2 to pi/2.

     acos returns the arc cosine in the range 0 to pi.

     atan returns the arctangent in the range -pi/2 to pi/2.

SEE ALSO
     hypot(3M), sqrt(3M), matherr(3M)