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XQuery math:atan2

math.atan2

math.atan2(
   y as Number,
   x as Number
) as Number

Summary

Returns the arc tangent of y/x, in radians, in the range from -pi/2 to +pi/2 (inclusive), using the signs of y and x to determine the appropriate quadrant.

Parameters
y The floating point dividend.
x The floating point divisor.

Example

  math.atan2(36.23, 5.234) 

  => 1.42732303452594

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