runlmc.linalg.composition module¶

class runlmc.linalg.composition.Composition(mats)[source]¶

matmat(x)[source]¶

Multiply a matrix \(X\) by this matrix, \(K\), yielding \(KX\). By default, this just repeatedly calls matvec().

Parameters:	X – a (possibly rectangular) dense matrix.
Returns:	the matrix-matrix product

matvec(x)[source]¶

Multiply a vector \(\textbf{x}\) by this matrix, \(K\), yielding \(K\textbf{x}\).

Parameters:	x – a one-dimensional numpy array of the same size as this matrix
Returns:	the matrix-vector product