- `TF = isinf (X)`

Return a logical array that is true where the elements of `X` are infinite.

Finite values and `NaN` values return false.

See also: `isfinite`, `isnan`.

### References

- https://www.mathworks.com/help/matlab/ref/isinf.html
- https://octave.sourceforge.io/octave/function/isinf.html