pkgsrc/math/arpack-ng/DESCR
plunky 80b2c6aec7 Add arpack-ng 3.7.0
This project started as a joint project between Debian, Octave and
Scilab in order to provide a common and maintained version of arpack,
as no single release has been published by Rice university for the
last few years and many software (Octave, Scilab, R, Matlab...) forked
it and implemented their own modifications.
2020-02-28 21:51:40 +00:00

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ARPACK-NG is a collection of Fortran77 subroutines designed to solve large
scale eigenvalue problems.
Important Features:
o Reverse Communication Interface.
o Single and Double Precision Real Arithmetic Versions for Symmetric,
Non-symmetric, Standard or Generalized Problems.
o Single and Double Precision Complex Arithmetic Versions for Standard
or Generalized Problems.
o Routines for Banded Matrices - Standard or Generalized Problems.
o Routines for The Singular Value Decomposition.
o Example driver routines that may be used as templates to implement
numerous Shift-Invert strategies for all problem types, data types
and precision.
o ILP64 support
No arpack release has been published by Rice University for many years, and
arpack-ng aims to provide a common repository of community fixes with a
testsuite.