Atn
Returns the arctangent of a number.
Syntax
Atn(<value>)
Parameters
<value>
Type: Double
A numeric value that represents the ratio of the two shorter sides of a right-angled triangle. (The ratio is the length of the side opposite a particular angle divided by the length of the side adjacent to the angle.)
(return)
Type: Double
Arctangent of <value>.
Notes
The return value is the angle in radians whose tangent is <value> and which is in the range -pi/2 to pi/2. If the current data value is NULL, <value> is 0.0 and the return value is 0.0.
This function is similar to the Atn function in VBScript.
Example
The following mrScriptBasic example uses the Atn function to get the arctangent of a number that represents the ratio of two sides of a right-angled triangle:
Dim MyArcTangent
MyArcTangent = Atn(12.0/5.0) ' Returns 1.17600520709514
See also