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Division by 0 check added

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Spectre113
2024-09-22 22:10:53 +07:00
committed by GitHub
parent 67a6ca1eae
commit 38982b501a
1 changed files with 9 additions and 4 deletions
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tools/elimination.cpp
+9 -4
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@@ -85,17 +85,22 @@ FracturedMatrix elimination(Matrix A, ColumnVector C, ColumnVector b, int pivot_
DestroyMatrix destroyedMatrix = destroyGeneralMatrix(generalMatrix); DestroyMatrix destroyedMatrix = destroyGeneralMatrix(generalMatrix);
pivot_column_index = Math::max_index(destroyedMatrix.C); pivot_column_index = max_index(destroyedMatrix.C);
ColumnVector ratio_vector(A.getRows()); ColumnVector ratio_vector(A.getRows());
for (int i = 0; i < A.getRows(); i++) { for (int i = 0; i < A.getRows(); i++) {
ratio_vector[i] = b[i] / A[i][pivot_column_index]; if (A[i][pivot_column_index] != 0) {
ratio_vector[i] = b[i] / A[i][pivot_column_index];
}
else {
ratio_vector[i] = 0;
}
} }
int pivot_row_index = Math::min_index(ratio_vector); int pivot_row_index = min_index(ratio_vector);
return {A, C, b, pivot_column_index, pivot_row_index}; return {A, C, b, pivot_column_index, pivot_row_index};
}