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isinf()
Returns whether the input is an infinite (positive or negative) value.
Syntax
isinf(x)
Arguments
- x: A real number.
Returns
A non-zero value (true) if x is a positive or negative infinite; and zero (false) otherwise.
Example
range x from -1 to 1 step 1
| extend y = 0.0
| extend div = 1.0*x/y
| extend isinf=isinf(div)
Output
| x | y | div | isinf |
|---|---|---|---|
| -1 | 0 | -∞ | 1 |
| 0 | 0 | NaN | 0 |
| 1 | 0 | ∞ | 1 |
See also
- 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().