isinf()
Returns whether 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.
See also
- For checking if value is null, see isnull().
- For checking if value is finite, see isfinite().
- For checking if value is NaN (Not-a-Number), see isnan().
Example
range x from -1 to 1 step 1
| extend y = 0.0
| extend div = 1.0*x/y
| extend isinf=isinf(div)
| x | y | div | isinf |
|---|---|---|---|
| -1 | 0 | -∞ | 1 |
| 0 | 0 | NaN | 0 |
| 1 | 0 | ∞ | 1 |