scipy.sparse.linalg.LinearOperator.matvec

LinearOperator.matvec(x)

Matrix-vector multiplication

Performs the operation y=A*x where A is an MxN linear operator and x is a column vector or rank-1 array.

Parameters:

x : {matrix, ndarray}

An array with shape (N,) or (N,1).

Returns:

y : {matrix, ndarray}

A matrix or ndarray with shape (M,) or (M,1) depending on the type and shape of the x argument.

Notes

This matvec wraps the user-specified matvec routine to ensure that y has the correct shape and type.