From 27d6b4daf90488e105d70f45e5d5684b8f1a906d Mon Sep 17 00:00:00 2001 From: Christoph Hertzberg Date: Wed, 24 Sep 2014 14:37:13 +0200 Subject: Tridiagonalization::diagonal() and ::subDiagonal() did not work. Added unit-test --- test/eigensolver_selfadjoint.cpp | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) (limited to 'test/eigensolver_selfadjoint.cpp') diff --git a/test/eigensolver_selfadjoint.cpp b/test/eigensolver_selfadjoint.cpp index 3851f9df2..41b598795 100644 --- a/test/eigensolver_selfadjoint.cpp +++ b/test/eigensolver_selfadjoint.cpp @@ -111,8 +111,17 @@ template void selfadjointeigensolver(const MatrixType& m) // test Tridiagonalization's methods Tridiagonalization tridiag(symmC); - // FIXME tridiag.matrixQ().adjoint() does not work + VERIFY_IS_APPROX(tridiag.diagonal(), tridiag.matrixT().template diagonal()); + VERIFY_IS_APPROX(tridiag.subDiagonal(), tridiag.matrixT().template diagonal<-1>()); + MatrixType T = tridiag.matrixT(); + if(rows>1 && cols>1) { + // FIXME check that upper and lower part are 0: + //VERIFY(T.topRightCorner(rows-2, cols-2).template triangularView().isZero()); + } + VERIFY_IS_APPROX(tridiag.diagonal(), T.diagonal().real()); + VERIFY_IS_APPROX(tridiag.subDiagonal(), T.template diagonal<1>().real()); VERIFY_IS_APPROX(MatrixType(symmC.template selfadjointView()), tridiag.matrixQ() * tridiag.matrixT().eval() * MatrixType(tridiag.matrixQ()).adjoint()); + VERIFY_IS_APPROX(MatrixType(symmC.template selfadjointView()), tridiag.matrixQ() * tridiag.matrixT() * tridiag.matrixQ().adjoint()); // Test computation of eigenvalues from tridiagonal matrix if(rows > 1) -- cgit v1.2.3