asin (arcsine)

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