qiskit.aqua.algorithms.HHL.expand_to_powerdim

static HHL.expand_to_powerdim(matrix, vector)

Expand a matrix to the next-larger 2**n dimensional matrix with ones on the diagonal and zeros on the off-diagonal and expand the vector with zeros accordingly.

Parameters

• matrix (ndarray) – the input matrix

• vector (ndarray) – the input vector

Return type

Tuple[ndarray, ndarray]

Returns

the expanded matrix, the expanded vector