scipy.optimize.LbfgsInvHessProduct.

rmatmat

LbfgsInvHessProduct.rmatmat(X)

Adjoint matrix-matrix multiplication.

Performs the operation y = A^H @ x where A is an MxN linear operator and x is a column vector or 1-d array, or 2-d array. The default implementation defers to the adjoint.

Parameters:

X{matrix, ndarray}

A matrix or 2D array.

Returns:

Y{matrix, ndarray}

A matrix or 2D array depending on the type of the input.

Notes

This rmatmat wraps the user-specified rmatmat routine.