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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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48
third_party/eigen/test/upperbidiagonalization.cpp vendored Normal file
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// This file is part of Eigen, a lightweight C++ template library
// for linear algebra.
//
// Copyright (C) 2010 Benoit Jacob <jacob.benoit.1@gmail.com>
//
// This Source Code Form is subject to the terms of the Mozilla
// Public License v. 2.0. If a copy of the MPL was not distributed
// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
#include <Eigen/SVD>
#include "main.h"
template <typename MatrixType>
void upperbidiag(const MatrixType& m) {
const Index rows = m.rows();
const Index cols = m.cols();
typedef Matrix<typename MatrixType::RealScalar, MatrixType::RowsAtCompileTime,
MatrixType::ColsAtCompileTime>
RealMatrixType;
typedef Matrix<typename MatrixType::Scalar, MatrixType::ColsAtCompileTime,
MatrixType::RowsAtCompileTime>
TransposeMatrixType;
MatrixType a = MatrixType::Random(rows, cols);
internal::UpperBidiagonalization<MatrixType> ubd(a);
RealMatrixType b(rows, cols);
b.setZero();
b.block(0, 0, cols, cols) = ubd.bidiagonal();
MatrixType c = ubd.householderU() * b * ubd.householderV().adjoint();
VERIFY_IS_APPROX(a, c);
TransposeMatrixType d =
ubd.householderV() * b.adjoint() * ubd.householderU().adjoint();
VERIFY_IS_APPROX(a.adjoint(), d);
}
EIGEN_DECLARE_TEST(upperbidiagonalization) {
for (int i = 0; i < g_repeat; i++) {
CALL_SUBTEST_1(upperbidiag(MatrixXf(3, 3)));
CALL_SUBTEST_2(upperbidiag(MatrixXd(17, 12)));
CALL_SUBTEST_3(upperbidiag(MatrixXcf(20, 20)));
CALL_SUBTEST_4(upperbidiag(
Matrix<std::complex<double>, Dynamic, Dynamic, RowMajor>(16, 15)));
CALL_SUBTEST_5(upperbidiag(Matrix<float, 6, 4>()));
CALL_SUBTEST_6(upperbidiag(Matrix<float, 5, 5>()));
CALL_SUBTEST_7(upperbidiag(Matrix<double, 4, 3>()));
}
}