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Fortran77 subroutines to solve large scale eigenvalue problems (development)

ARPACK software is capable of solving large scale symmetric, nonsymmetric, and generalized eigenproblems from significant application areas. The software is designed to compute a few (k) eigenvalues with user specified features such as those of largest real part or largest magnitude. Storage requirements are on the order of n*k locations. No auxiliary storage is required. A set of Schur basis vectors for the desired k-dimensional eigen-space is computed which is numerically orthogonal to working precision. Numerically accurate eigenvectors are available on request.

This package contains the static libraries and the documentation for development with libarpack (including examples).

Package version:3.1.1-2.1


  There are five documents within the DOCUMENT subdirectory.
  In summary,

  ex-nonsym.doc, ex-sym.doc  and ex-complex.doc
  -------------  ----------      --------------
  Example Templates of how to invoke the different computational
  modes offered by [D,S]NAUPD, [D,S]SAUPD and [C,Z]NAUPD.

  File that gets timing statistics for the different parts
  of the Arnoldi updat


arpack (3.1.1-2.1) unstable; urgency=low

  * Non-maintainer upload.
  * libarpack2: add Breaks: octave3.2  (Closes: #684773)
    This fixes some upgrade paths by removing the obsolete octave3.2 (and its
    triggers) a bit earlier.  dpkg may run trigger processing of a package
    even if its dependencies are not satisfied.  The octave3.2 triggers may
    be run in such a state and will fail, abo


arpack-ng - 3.1.1

   * Option --enable-maintainer-mode added to the configure
   * --disable-mpi disables the build of parpack (Closes: #714)
   * Switch to automake 1.11.3

 -- Sylvestre Ledru <>  Mon, 21 May 2012 09:08:41 +0200

arpack-ng - 3.1.0

   * Many bug fixes in the parpack lib. It is an old patch from upstream.
     Thanks to Viral Shah for pinging


# -*- coding: utf-8 -*-
This package was debianized by Christophe Prud'homme on


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