wok-current view arpack-ng/description.txt @ rev 20448

Add python-backports_abc python-ptyprocess python-futures
author Pascal Bellard <pascal.bellard@slitaz.org>
date Thu Sep 20 21:53:55 2018 +0200 (2018-09-20)
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1 ARPACK software is capable of solving large scale symmetric, nonsymmetric,
2 and generalized eigenproblems from significant application areas. The
3 software is designed to compute a few (k) eigenvalues with user specified
4 features such as those of largest real part or largest magnitude. Storage
5 requirements are on the order of n*k locations. No auxiliary storage is
6 required. A set of Schur basis vectors for the desired k-dimensional
7 eigen-space is computed which is numerically orthogonal to working precision.
8 Numerically accurate eigenvectors are available on request.