| // This file is part of Eigen, a lightweight C++ template library |
| // for linear algebra. |
| // |
| // Copyright (C) 2012 Gael Guennebaud <gael.guennebaud@inria.fr> |
| // |
| // 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 "main.h" |
| #include <limits> |
| #include <Eigen/Eigenvalues> |
| |
| template<typename MatrixType> void generalized_eigensolver_real(const MatrixType& m) |
| { |
| typedef typename MatrixType::Index Index; |
| /* this test covers the following files: |
| GeneralizedEigenSolver.h |
| */ |
| Index rows = m.rows(); |
| Index cols = m.cols(); |
| |
| typedef typename MatrixType::Scalar Scalar; |
| typedef Matrix<Scalar, MatrixType::RowsAtCompileTime, 1> VectorType; |
| |
| MatrixType a = MatrixType::Random(rows,cols); |
| MatrixType b = MatrixType::Random(rows,cols); |
| MatrixType a1 = MatrixType::Random(rows,cols); |
| MatrixType b1 = MatrixType::Random(rows,cols); |
| MatrixType spdA = a.adjoint() * a + a1.adjoint() * a1; |
| MatrixType spdB = b.adjoint() * b + b1.adjoint() * b1; |
| |
| // lets compare to GeneralizedSelfAdjointEigenSolver |
| GeneralizedSelfAdjointEigenSolver<MatrixType> symmEig(spdA, spdB); |
| GeneralizedEigenSolver<MatrixType> eig(spdA, spdB); |
| |
| VERIFY_IS_EQUAL(eig.eigenvalues().imag().cwiseAbs().maxCoeff(), 0); |
| |
| VectorType realEigenvalues = eig.eigenvalues().real(); |
| std::sort(realEigenvalues.data(), realEigenvalues.data()+realEigenvalues.size()); |
| VERIFY_IS_APPROX(realEigenvalues, symmEig.eigenvalues()); |
| } |
| |
| void test_eigensolver_generalized_real() |
| { |
| for(int i = 0; i < g_repeat; i++) { |
| int s = 0; |
| CALL_SUBTEST_1( generalized_eigensolver_real(Matrix4f()) ); |
| s = internal::random<int>(1,EIGEN_TEST_MAX_SIZE/4); |
| CALL_SUBTEST_2( generalized_eigensolver_real(MatrixXd(s,s)) ); |
| |
| // some trivial but implementation-wise tricky cases |
| CALL_SUBTEST_2( generalized_eigensolver_real(MatrixXd(1,1)) ); |
| CALL_SUBTEST_2( generalized_eigensolver_real(MatrixXd(2,2)) ); |
| CALL_SUBTEST_3( generalized_eigensolver_real(Matrix<double,1,1>()) ); |
| CALL_SUBTEST_4( generalized_eigensolver_real(Matrix2d()) ); |
| TEST_SET_BUT_UNUSED_VARIABLE(s) |
| } |
| } |