Type
Trigonometric Function

Purpose
The asin function calculates the arcsine of a numeric value. The result is an angle expressed in radians between -p/2 to p/2.

Syntax
asin( 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.
The valid range of the input value is -1 to 1.

Example
asin(1)
Returns:1.570796

asin(-0.50)
Returns: -0.5235988