ATAN2 returns a trigonometric arc tangent (inverse tangent) for two values X and Y, which are the lengths of the rectangular sides of a triangle.

Syntax

ATAN2(NumExp for X, NumExp for Y)

Arguments 

• NumExp for X is the length of one rectangular side of a triangle corresponding with the co-ordinate values.
• NumExp for Y is the length of the other rectangular side of a triangle corresponding with the co-ordinate values.

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