initial commit

2026-10-22 09:23:54 +08:00
commit 63f557a39f
4448 changed files with 584487 additions and 0 deletions
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+int n = 10000;
+VectorXd x(n), b(n);
+SparseMatrix<double> A(n, n);
+/* ... fill A and b ... */
+BiCGSTAB<SparseMatrix<double> > solver;
+solver.compute(A);
+x = solver.solve(b);
+std::cout << "#iterations:     " << solver.iterations() << std::endl;
+std::cout << "estimated error: " << solver.error() << std::endl;
+/* ... update b ... */
+x = solver.solve(b);  // solve again