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NLESC-JCER / spectra

A header-only C++ library for large scale eigenvalue problems
https://spectralib.org
Mozilla Public License 2.0
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Schur decomposition in eigen? #35

Open JensWehner opened 4 years ago

JensWehner commented 4 years ago

For non symmetric systems, a Schur decomposition instead of an eigenvalue decomposition is used internally. This is a preparation for the non-symmetric case.

JensWehner commented 4 years ago

So Eigen has a Schur decomposition, but the sorting of eigenvalues gets more complicated for schur decomposition, so the rodering of schur vectors would have to be implemented which is really not easy.

JensWehner commented 4 years ago

https://forum.kde.org/viewtopic.php?f=74&t=125695