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atan2

The atan2 function calculates the angle, in radians, between the positive x-axis and the ray from the origin to the point (y, x).

Syntax
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    atan2( Y, X )

Arguments
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  • X: X coordinate (a real number).
  • Y: Y coordinate (a real number).

Returns
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Returns the angle in radians between the positive x-axis and the ray from the origin to the point (y, x).