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scipy.sparse.

# kronsum

scipy.sparse.kronsum(A, B, format=None)

  kronecker sum of square sparse matrices A and B

  Kronecker sum of two sparse matrices is a sum of two Kronecker products kron(I_n,A) + kron(B,I_m) where A has shape (m,m) and B has shape (n,n) and I_m and I_n are identity matrices of shape (m,m) and (n,n), respectively.

  Parameters:
    A

      square matrix

    B

      square matrix

    formatstr

      format of the result (e.g. “csr”)

  Returns:
    kronecker sum in a sparse matrix format