ARPACK-NG is a collection of Fortran77 subroutines designed to solve large scale eigenvalue problems.
Important Features:
* Reverse Communication Interface.
* Single and Double Precision Real Arithmetic Versions for Symmetric, Non-symmetric, Standard or Generalized Problems.
* Single and Double Precision Complex Arithmetic Versions for Standard or Generalized Problems.
* Routines for Banded Matrices - Standard or Generalized Problems.
* Routines for The Singular Value Decomposition.
* Example driver routines that may be used as templates to implement numerous Shift-Invert strategies for all problem types, data types and precision.
Important Features:
* Reverse Communication Interface.
* Single and Double Precision Real Arithmetic Versions for Symmetric, Non-symmetric, Standard or Generalized Problems.
* Single and Double Precision Complex Arithmetic Versions for Standard or Generalized Problems.
* Routines for Banded Matrices - Standard or Generalized Problems.
* Routines for The Singular Value Decomposition.
* Example driver routines that may be used as templates to implement numerous Shift-Invert strategies for all problem types, data types and precision.
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License:
BSD (3-clause) - Download HPKG file