qiskit.opflow.gradients.DerivativeBase.parameter_expression_grad

static DerivativeBase.parameter_expression_grad(param_expr, param)

Get the derivative of a parameter expression w.r.t. the given parameter.

バージョン 0.18.0 で非推奨: The method qiskit.opflow.gradients.derivative_base.DerivativeBase.parameter_expression_grad() is deprecated as of qiskit-terra 0.18.0. It will be removed no earlier than 3 months after the release date. Instead, use the ParameterExpression.gradient method.

パラメータ

• param_expr (ParameterExpression) – The Parameter Expression for which we compute the derivative

• param (ParameterExpression) – Parameter w.r.t. which we want to take the derivative

戻り値

ParameterExpression representing the gradient of param_expr w.r.t. param

戻り値の型

Union[ParameterExpression, float]