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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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11
third_party/eigen/doc/snippets/Triangular_solve.cpp vendored Normal file
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Matrix3d m = Matrix3d::Zero();
m.triangularView<Eigen::Upper>().setOnes();
cout << "Here is the matrix m:\n" << m << endl;
Matrix3d n = Matrix3d::Ones();
n.triangularView<Eigen::Lower>() *= 2;
cout << "Here is the matrix n:\n" << n << endl;
cout << "And now here is m.inverse()*n, taking advantage of the fact that"
" m is upper-triangular:\n"
<< m.triangularView<Eigen::Upper>().solve(n) << endl;
cout << "And this is n*m.inverse():\n"
<< m.triangularView<Eigen::Upper>().solve<Eigen::OnTheRight>(n);