pow(val: Any, exponent: Any, default: Any = (, )) → Any¶
val**factorof the given value, if defined.Values define an extrapolation by defining a pow(self, exponent) method.Note that the method may return NotImplemented to indicate a particularextrapolation can’t be done.
- val – The value or iterable of values to invert.
- exponent – The extrapolation factor. For example, if this is 0.5 and val is a gate then the caller is asking for a square root of the gate.
- default – Determines the fallback behavior when val doesn’t have an extrapolation defined. If default is not set and that occurs, a TypeError is raised instead.
If val has a __pow__ method that returns something besides NotImplemented, that result is returned. Otherwise, if a default value was specified, the default value is returned.
TypeError– val doesn’t have a __pow__ method (or that method returned NotImplemented) and no default value was specified.