# Clarion Community Help

### Site Tools

sin_return_sine_.htm
 Navigation:  Language Reference > 13 - Built-in Functions >====== SIN (return sine) ======

 SIN Returns sine. radians A numeric constant, variable or expression for the angle expressed in radians. p is a constant which represents the ratio of the circumference and radius of a circle. There are 2p radians (or 360 degrees) in a circle.

The SIN procedure returns the trigonometric sine of an angle measured in radians. The sine is the ratio of the length of the angle's opposite side divided by the length of the hypotenuse.

Return Data Type:     REAL

Example:

PI        EQUATE(3.1415926535898)     !The value of PI