ATAN Function (DAX)
Returns the arctangent, or inverse tangent, of a number. The arctangent is the angle whose tangent is number. The returned angle is given in radians in the range -pi/2 to pi/2.
ATAN(number)
Parameters
| Term | Definition |
|---|---|
| number | The tangent of the angle you want. |
Returns the inverse hyperbolic tangent of a number.
To express the arctangent in degrees, multiply the result by 180/PI( ) or use the DEGREES function.
| Formula | Description | Result |
|---|---|---|
| =ATAN(1) | Arctangent of 1 in radians, pi/4 | 0.785398163 |
| =ATAN(1)*180/PI() | Arctangent of 1 in degrees | 45 |
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