| 164 | 164 | def _blockmul(self, other): |
| 165 | 165 | if (isinstance(other, BlockMatrix) and |
| 166 | 166 | self.colblocksizes == other.rowblocksizes): |
| 167 | return BlockMatrix(self.blocks*other.blocks) | |
| 167 | from sympy.core.numbers import Zero | |
| 168 | # Multiply the blocks | |
| 169 | result_blocks = self.blocks*other.blocks | |
| 170 | ||
| 171 | # Convert Zero scalars back to ZeroMatrix with appropriate dimensions | |
| 172 | def fix_zero_blocks(block_matrix): | |
| 173 | from sympy.matrices.immutable import ImmutableDenseMatrix | |
| 174 | fixed_blocks = [] | |
| 175 | for i in range(block_matrix.shape[0]): | |
| 176 | row = [] | |
| 177 | for j in range(block_matrix.shape[1]): | |
| 178 | block = block_matrix[i, j] | |
| 179 | if isinstance(block, Zero): | |
| 180 | # Determine the correct dimensions for this ZeroMatrix | |
| 181 | # The result block at (i,j) should have dimensions: | |
| 182 | # rows: self.rowblocksizes[i], cols: other.colblocksizes[j] | |
| 183 | rows = self.rowblocksizes[i] | |
| 184 | cols = other.colblocksizes[j] | |
| 185 | row.append(ZeroMatrix(rows, cols)) | |
| 186 | else: | |
| 187 | row.append(block) | |
| 188 | fixed_blocks.append(row) | |
| 189 | return ImmutableDenseMatrix(fixed_blocks) | |
| 190 | ||
| 191 | return BlockMatrix(fix_zero_blocks(result_blocks)) | |
| 168 | 192 | |
| 169 | 193 | return self * other |
| 170 | 194 |
| Test Name | Status |
|---|---|
test_zero_matrix_add | Fail |
test_issue_17624 | Pass |
test_bc_matmul | Pass |
test_bc_matadd | Pass |
test_bc_transpose | Pass |
test_bc_dist_diag | Pass |
test_block_plus_ident | Pass |
test_BlockMatrix | Pass |
test_block_collapse_explicit_matrices | Pass |
test_BlockMatrix_trace | Pass |
test_BlockMatrix_Determinant | Pass |
test_squareBlockMatrix | Pass |
test_BlockDiagMatrix | Pass |
test_blockcut | Pass |
test_reblock_2x2 | Pass |
test_deblock | Pass |
test_sort_key | Pass |
test_matadd_sympify | Pass |
test_matadd_of_matrices | Pass |
test_doit_args | Pass |
test_generic_identity | Pass |
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