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* add .imag() function

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* fix a very old bug in EigenSolver that I had completely forgotten
  (thanks to Timothy to refresh my mind)
* fix doc of Matrix::Map
This commit is contained in:
Gael Guennebaud
2008-11-14 09:55:25 +00:00
parent 86ccd99d8d
commit 139529e97b
7 changed files with 42 additions and 36 deletions
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21
test/eigensolver.cpp
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@@ -130,27 +130,13 @@ template<typename MatrixType> void eigensolver(const MatrixType& m)
MatrixType a1 = MatrixType::Random(rows,cols);
MatrixType symmA = a.adjoint() * a + a1.adjoint() * a1;
// MatrixType b = MatrixType::Random(rows,cols);
// MatrixType b1 = MatrixType::Random(rows,cols);
// MatrixType symmB = b.adjoint() * b + b1.adjoint() * b1;
EigenSolver<MatrixType> ei0(symmA);
VERIFY_IS_APPROX(symmA * ei0.pseudoEigenvectors(), ei0.pseudoEigenvectors() * ei0.pseudoEigenvalueMatrix());
VERIFY_IS_APPROX((symmA.template cast<Complex>()) * (ei0.pseudoEigenvectors().template cast<Complex>()),
(ei0.pseudoEigenvectors().template cast<Complex>()) * (ei0.eigenvalues().asDiagonal()));
// a = a /*+ symmA*/;
EigenSolver<MatrixType> ei1(a);
IOFormat OctaveFmt(4, AlignCols, ", ", ";\n", "", "", "[", "]");
// std::cerr << "==============\n" << a.format(OctaveFmt) << "\n\n" << ei1.eigenvalues().transpose() << "\n\n";
// std::cerr << a * ei1.pseudoEigenvectors() << "\n\n" << ei1.pseudoEigenvectors() * ei1.pseudoEigenvalueMatrix() << "\n\n\n";
// VERIFY_IS_APPROX(a * ei1.pseudoEigenvectors(), ei1.pseudoEigenvectors() * ei1.pseudoEigenvalueMatrix());
// std::cerr << a.format(OctaveFmt) << "\n\n";
// std::cerr << ei1.eigenvectors().format(OctaveFmt) << "\n\n";
// std::cerr << a.template cast<Complex>() * ei1.eigenvectors() << "\n\n" << ei1.eigenvectors() * ei1.eigenvalues().asDiagonal().eval() << "\n\n";
VERIFY_IS_APPROX(a * ei1.pseudoEigenvectors(), ei1.pseudoEigenvectors() * ei1.pseudoEigenvalueMatrix());
VERIFY_IS_APPROX(a.template cast<Complex>() * ei1.eigenvectors(),
ei1.eigenvectors() * ei1.eigenvalues().asDiagonal().eval());
@@ -167,8 +153,7 @@ void test_eigensolver()
CALL_SUBTEST( selfadjointeigensolver(MatrixXd(19,19)) );
CALL_SUBTEST( eigensolver(Matrix4f()) );
// FIXME the test fails for larger matrices
// CALL_SUBTEST( eigensolver(MatrixXd(7,7)) );
CALL_SUBTEST( eigensolver(MatrixXd(17,17)) );
}
}