| 1 | 1 | from __future__ import print_function, division |
| 2 | 2 | |
| 3 | 3 | from sympy import ask, Q |
| 4 | from sympy.core import Basic, Add | |
| 4 | from sympy.core import Basic, Add, S | |
| 5 | 5 | from sympy.core.compatibility import range |
| 6 | 6 | from sympy.strategies import typed, exhaust, condition, do_one, unpack |
| 7 | 7 | from sympy.strategies.traverse import bottom_up |
| 148 | 148 | |
| 149 | 149 | @property |
| 150 | 150 | def rowblocksizes(self): |
| 151 | return [self.blocks[i, 0].rows for i in range(self.blockshape[0])] | |
| 151 | sizes = [] | |
| 152 | for i in range(self.blockshape[0]): | |
| 153 | block = self.blocks[i, 0] | |
| 154 | if hasattr(block, 'rows'): | |
| 155 | sizes.append(block.rows) | |
| 156 | else: | |
| 157 | # Handle scalar zeros and other objects that should be treated as zero matrices | |
| 158 | # Infer size from the first valid block in this row | |
| 159 | for j in range(self.blockshape[1]): | |
| 160 | other_block = self.blocks[i, j] | |
| 161 | if hasattr(other_block, 'rows'): | |
| 162 | sizes.append(other_block.rows) | |
| 163 | break | |
| 164 | else: | |
| 165 | # If all blocks in this row are scalars, infer from structure | |
| 166 | # This is a fallback - in practice this shouldn't happen for valid block matrices | |
| 167 | # Try to infer from the column sizes of blocks in the first column | |
| 168 | if hasattr(self.blocks[i, 0], 'shape'): | |
| 169 | sizes.append(self.blocks[i, 0].shape[0]) | |
| 170 | else: | |
| 171 | sizes.append(S.One) | |
| 172 | return sizes | |
| 152 | 173 | |
| 153 | 174 | @property |
| 154 | 175 | def colblocksizes(self): |
| 155 | return [self.blocks[0, i].cols for i in range(self.blockshape[1])] | |
| 176 | sizes = [] | |
| 177 | for i in range(self.blockshape[1]): | |
| 178 | block = self.blocks[0, i] | |
| 179 | if hasattr(block, 'cols'): | |
| 180 | sizes.append(block.cols) | |
| 181 | else: | |
| 182 | # Handle scalar zeros and other objects that should be treated as zero matrices | |
| 183 | # Infer size from the first valid block in this column | |
| 184 | for j in range(self.blockshape[0]): | |
| 185 | other_block = self.blocks[j, i] | |
| 186 | if hasattr(other_block, 'cols'): | |
| 187 | sizes.append(other_block.cols) | |
| 188 | break | |
| 189 | else: | |
| 190 | # If all blocks in this column are scalars, infer from structure | |
| 191 | # This is a fallback - in practice this shouldn't happen for valid block matrices | |
| 192 | # Try to infer from the row sizes of blocks in the first row | |
| 193 | if hasattr(self.blocks[0, i], 'shape'): | |
| 194 | sizes.append(self.blocks[0, i].shape[1]) | |
| 195 | else: | |
| 196 | sizes.append(S.One) | |
| 197 | return sizes | |
| 156 | 198 | |
| 157 | 199 | def structurally_equal(self, other): |
| 158 | 200 | return (isinstance(other, BlockMatrix) |
| 164 | 206 | def _blockmul(self, other): |
| 165 | 207 | if (isinstance(other, BlockMatrix) and |
| 166 | 208 | self.colblocksizes == other.rowblocksizes): |
| 167 | return BlockMatrix(self.blocks*other.blocks) | |
| 209 | # Perform block multiplication | |
| 210 | result_blocks = self.blocks * other.blocks | |
| 211 | ||
| 212 | # Convert the result to a list of lists and handle scalar zeros | |
| 213 | rows, cols = result_blocks.shape | |
| 214 | block_list = [] | |
| 215 | for i in range(rows): | |
| 216 | row = [] | |
| 217 | for j in range(cols): | |
| 218 | element = result_blocks[i, j] | |
| 219 | # Convert scalar zeros to ZeroMatrix with appropriate dimensions | |
| 220 | if isinstance(element, type(S.Zero)) and element == S.Zero: | |
| 221 | # Determine the appropriate dimensions based on block structure | |
| 222 | # Row dimension: from self's row block size | |
| 223 | row_dim = self.rowblocksizes[i] | |
| 224 | # Column dimension: from other's column block size | |
| 225 | col_dim = other.colblocksizes[j] | |
| 226 | row.append(ZeroMatrix(row_dim, col_dim)) | |
| 227 | else: | |
| 228 | row.append(element) | |
| 229 | block_list.append(row) | |
| 230 | ||
| 231 | return BlockMatrix(block_list) | |
| 168 | 232 | |
| 169 | 233 | return self * other |
| 170 | 234 |
| 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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