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Move eigen to third party (#282)

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* remove useless statement

* Add eigen to third_party dir

* remove reducdant lines
This commit is contained in:
Jack Zhou
2022-09-26 19:24:02 +08:00
committed by GitHub
parent 36eb6fbba6
commit 355382ad63
1781 changed files with 420576 additions and 71 deletions
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8
third_party/eigen/doc/snippets/PartialPivLU_solve.cpp vendored Normal file
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@@ -0,0 +1,8 @@
MatrixXd A = MatrixXd::Random(3, 3);
MatrixXd B = MatrixXd::Random(3, 2);
cout << "Here is the invertible matrix A:" << endl << A << endl;
cout << "Here is the matrix B:" << endl << B << endl;
MatrixXd X = A.lu().solve(B);
cout << "Here is the (unique) solution X to the equation AX=B:" << endl
<< X << endl;
cout << "Relative error: " << (A * X - B).norm() / B.norm() << endl;