atan()

Function group	Execute on client	Platform(s)
Trigonometric	YES	All

Syntax

atan(number)

Description

Returns the arc tangent of a number in the range -90 to 90 degrees (-pi/2 to pi/2 radians if #RAD is true).

Example

Calculate
 
lResult
 as 
atan
(1)

# returns 45