# MatrixExpectation¶

class MatrixExpectation[source]

Bases: qiskit.opflow.expectations.expectation_base.ExpectationBase

An Expectation converter which converts Operator measurements to be matrix-based so they can be evaluated by matrix multiplication.

Methods Defined Here

 compute_variance Compute the variance of the expectation estimator. convert Accept an Operator and return a new Operator with the Pauli measurements replaced by Matrix based measurements.