acos()
Applies to: ✅ Microsoft Fabric ✅ Azure Data Explorer ✅ Azure Monitor ✅ Microsoft Sentinel
Calculates the angle whose cosine is the specified number. Inverse operation of cos().
Syntax
acos(x)
Learn more about syntax conventions.
Parameters
| Name | Type | Required | Description |
|---|---|---|---|
| x | real |
✔️ | The value used to calculate the arc cosine. |
Returns
The value of the arc cosine of x. The return value is null if x < -1 or x > 1.