====== ArcTan(number_y, number_x) ======
Category:  Number function

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=====Description=====
This function returns the angle, in radians((Conversion:  radians = degrees * ([[syntax:functions:pi|Pi()]] / 180) )), whose tangent is the quotient of //number_y// and //number_x//.

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=====Arguments=====
^Argument^Type^Description^
|number_y|Number|The y coordinate of point.|
|number_x|Number|The x coordinate of a point.|
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**Return value type:**  Number

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=====Examples=====

  arctan(1,2) //Returns 0.4636…

  arctan(0.5,3) //Returns 0.1651…


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===== See also =====
  * [[syntax:functions:acos|ACos(cosine)]]
  * [[syntax:functions:asin|ASin(sine)]]
  * [[syntax:functions:atan|ATan(tangent)]]
  * [[syntax:functions:tan|Tan(angle)]]