qiskit.aqua.operators.gradients.QFIBase.convert¶
-
abstract
QFIBase.convert(operator, params=None)¶ - Parameters
operator (
OperatorBase) – The operator we are taking the gradient, Hessian or QFI ofparams (
Union[ParameterVector,ParameterExpression,List[ParameterExpression],None]) – The parameters we are taking the gradient, Hessian or QFI with respect to.
- Return type
OperatorBase- Returns
An operator whose evaluation yields the gradient, Hessian or QFI.
- Raises
ValueError – If
paramscontains a parameter not present inoperator.