scipy.optimize.LbfgsInvHessProduct.matmat

LbfgsInvHessProduct.matmat(self, X)

Matrix-matrix multiplication.

Performs the operation y=A*X where A is an MxN linear operator and X dense N*K matrix or ndarray.

Parameters

X{matrix, ndarray}

An array with shape (N,K).

Returns

Y{matrix, ndarray}

A matrix or ndarray with shape (M,K) depending on the type of the X argument.

Notes

This matmat wraps any user-specified matmat routine or overridden _matmat method to ensure that y has the correct type.