bundles / scipy latest / scipy / sparse / linalg / _interface / LinearOperator / rmatvec

function

`scipy.sparse.linalg._interface:LinearOperator.rmatvec`

source: build-install/usr/lib/python3.14/site-packages/scipy/sparse/linalg/_interface.py:395

Signature

def rmatvec(self, x)

Summary

Adjoint matrix-vector multiplication.

Extended Summary

Applies A^H to x, where A is an M x N linear operator (or batch of linear operators) and x is a row vector (or batch of such vectors).

Parameters

x : {matrix, ndarray}: An array with shape (..., M) representing a row vector (or batch of row vectors), or an array with shape (M, 1) representing a column vector.
versionadded 1.18.0
A FutureWarning is now emitted for column vector input of shape (M, 1), for which an array with shape (N, 1) is returned. rmatmat can be called instead for identical behaviour on such input.

Returns

y : {matrix, ndarray}: An array with shape (..., N).

Notes

This method wraps the user-specified rmatvec routine or overridden _rmatvec method to ensure that y has the correct shape and type.

Aliases

scipy.linalg._decomp_interpolative.LinearOperator.rmatvec