scipy.optimize.LbfgsInvHessProduct.
matmat#
- LbfgsInvHessProduct.matmat(X)[source]#
- 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.