isinf()

Applies to: ✅ Azure Data Explorer ✅ Azure Monitor ✅ Microsoft Sentinel

Returns whether the input is an infinite (positive or negative) value.

isinf(number)

Learn more about syntax conventions.

true if x is a positive or negative infinite and false otherwise.

range x from -1 to 1 step 1
| extend y = 0.0
| extend div = 1.0*x/y
| extend isinf=isinf(div)

Output

• To check if a value is null, see isnull().
• To check if a value is finite, see isfinite().
• To check if a value is NaN (Not-a-Number), see isnan().