Type
Trigonometric Function

Purpose
The cos function calculates the cosine of an angle expressed in radians. The value returned ranges between -1 and 1.

Syntax
cos( NUMERIC VALUE)

Returns
A numeric value.

Usage
The numeric value in a Trigonometric function can be a constant value (as shown below), a variable, a field value or an expression.
Examples
cos( 3.1415928)
Returns: -1

cos( -22)
Returns: .9271838