tree 8800578d90c409f8b11bb48779a7dfc4931b21e7
parent 7a43a4408bd3a04616bb91f9d039bdaf0ff976dd
author Jitse Niesen <jitse@maths.leeds.ac.uk> 1274719407 +0100
committer Jitse Niesen <jitse@maths.leeds.ac.uk> 1274719407 +0100

Return matrices by constant reference where possible.
This changes the return type of:
* eigenvectors() and eigenvalues() in ComplexEigenSolver
* eigenvalues() in EigenSolver
* eigenvectors() and eigenvalues() in SelfAdjointEigenSolver