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[Licence| Download | New Version Template] aeex_v2_0.tar.gz(5057 Kbytes)
Manuscript Title: An updated version of the Motion4D-library
Authors: Thomas Müller, Frank Grave
Program title: Motion4D-library
Catalogue identifier: AEEX_v2_0
Distribution format: tar.gz
Journal reference: Comput. Phys. Commun. 181(2010)703
Programming language: C++.
Computer: All platforms with a C++ compiler.
Operating system: Linux, Unix, Windows.
RAM: 31 MBytes
Keywords: general relativity, timelike and lightlike geodesics.
Classification: 1.5.

External routines: Gnu Scientific Library (GSL) (http://www.gnu.org/software/gsl/)

Does the new version supersede the previous version?: Yes

Nature of problem:
Solve geodesic equation, parallel and Fermi-Walker transport in four-dimensional Lorentzian spacetimes.

Solution method:
Integration of ordinary differential equations.

Reasons for new version:
To be applicable for the GeodesicViewer (accepted for publication in Comput. Phys. Comm., COMPHY 3941, DOI:10.1016/j.cpc.2009.10.010. [program AEFP_v1_0]), there were several minor adjustments to be done.

Summary of revisions:
  1. Calculation of embedding diagrams are improved.
  2. Physical units can be used for some metrics.
  3. Tests for the constraint equation within the metric classes are slightly modified.
  4. New metrics: AlcubierreWarp, GoedelScaled, GoedelScaledCart, Kasner

Running time:
The test runs provided with the distribution require only a few seconds to run.