Atan
Purpose
Returns the trigonometric arc tangent (Atan), or inverse tangent, of a number.
Format
Atan(number)
Parameters
number - any numeric
expression or
field containing a numeric expression
Data type returned
number
Originated in
FileMaker Pro 6.0 or earlier
Description
The arc tangent is the angle, in radians, whose tangent is equal to the specified number.
Examples
Atan(1) returns .78539816....
Degrees(Atan(1)) returns 45.
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