bohdan

Finished
11from __future__ import print_function, division
22
3from sympy import ask, Q
3from sympy import ask, Q, S
44from sympy.core import Basic, Add
55from sympy.core.compatibility import range
66from sympy.strategies import typed, exhaust, condition, do_one, unpack
164164 def _blockmul(self, other):
165165 if (isinstance(other, BlockMatrix) and
166166 self.colblocksizes == other.rowblocksizes):
167 return BlockMatrix(self.blocks*other.blocks)
167 result = self.blocks*other.blocks
168 # Convert any Zero objects back to ZeroMatrix with proper dimensions
169 from sympy.matrices.immutable import ImmutableDenseMatrix
170 rows, cols = result.shape
171 new_result = [[None for _ in range(cols)] for _ in range(rows)]
172 for i in range(rows):
173 for j in range(cols):
174 element = result[i, j]
175 if element == S.Zero:
176 # Determine the correct dimensions for this zero block
177 # Row dimension comes from self's row block i
178 # Col dimension comes from other's col block j
179 row_dim = self.blocks[i, 0].rows if hasattr(self.blocks[i, 0], 'rows') else self.rowblocksizes[i]
180 col_dim = other.blocks[0, j].cols if hasattr(other.blocks[0, j], 'cols') else other.colblocksizes[j]
181 new_result[i][j] = ZeroMatrix(row_dim, col_dim)
182 else:
183 new_result[i][j] = element
184 return BlockMatrix(new_result)
168185
169186 return self * other
170187
Test NameStatus
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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