kron(A, B, format=None)

Parameters

A : sparse or dense matrix

first matrix of the product

B : sparse or dense matrix

second matrix of the product

format : str, optional

format of the result (e.g. "csr")

Returns

kronecker product in a sparse matrix format

kronecker product of sparse matrices A and B

Examples

>>> from scipy import sparse
... A = sparse.csr_matrix(np.array([[0, 2], [5, 0]]))
... B = sparse.csr_matrix(np.array([[1, 2], [3, 4]]))
... sparse.kron(A, B).toarray()
array([[ 0,  0,  2,  4],
       [ 0,  0,  6,  8],
       [ 5, 10,  0,  0],
       [15, 20,  0,  0]])

>>> sparse.kron(A, [[1, 2], [3, 4]]).toarray()
array([[ 0,  0,  2,  4],
       [ 0,  0,  6,  8],
       [ 5, 10,  0,  0],
       [15, 20,  0,  0]])

See :

Back References

The following pages refer to to this document either explicitly or contain code examples using this.

scipy.sparse._construct.kron

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