Disabled external gits
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11
cs440-acg/ext/eigen/doc/snippets/BiCGSTAB_simple.cpp
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11
cs440-acg/ext/eigen/doc/snippets/BiCGSTAB_simple.cpp
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int n = 10000;
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VectorXd x(n), b(n);
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SparseMatrix<double> A(n,n);
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/* ... fill A and b ... */
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BiCGSTAB<SparseMatrix<double> > solver;
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solver.compute(A);
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x = solver.solve(b);
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std::cout << "#iterations: " << solver.iterations() << std::endl;
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std::cout << "estimated error: " << solver.error() << std::endl;
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/* ... update b ... */
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x = solver.solve(b); // solve again
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