qiskit.circuit.ParameterExpression.gradient¶
- ParameterExpression.gradient(param)[source]¶
Get the derivative of a parameter expression w.r.t. a specified parameter expression.
- Parameters
param (Parameter) -- Parameter w.r.t. which we want to take the derivative
- Returns
ParameterExpression representing the gradient of param_expr w.r.t. param or complex or float number
- Return type
Union[ParameterExpression, complex]