Returns the arctangent, or inverse tangent, of the specified x-coordinates and y-coordinates. The arctangent is the angle from the x-axis to a line containing the origin (0, 0) and a point with the specified coordinates. The angle is given in radians between (-π…π].
Syntax
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ATAN2( Number x, Number y ) → Number |
Parameters
- x
- Required. The x-coordinate of the point.
- y
- Required. The y-coordinate of the point.
Remarks
To express the arctangent in degrees, multiply the result by 180/PI or use the DEGREES function.
Example
| Formula
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=ATAN2(1,1) |
See Also
Function Reference
ATAN Function
TAN Function
PI Function
RADIANS Function
DEGREES Function