93
edits
Code: Difference between revisions
no edit summary
(+ Fixed point toolbox) |
No edit summary |
||
| Line 134: | Line 134: | ||
Matlab also recently introduced a [http://www.mathworks.com/products/fixed Fixed Point Toolbox]. The Octave toolbox has been written independently of the Matlab toolbox and doesn't follow the same syntax. This might change in the future, if the author (DavidBateman) can be bothered to put the effort into making the required changes. Mathworks [http://www.mathworks.com/access/helpdesk/help/pdf_doc/fixedpoint/FPTUG.pdf documentation] for their fixed point toolbox also includes a generic discussion of fixed point numbers that might be a useful addition to the documentation supplied with Octave itself. Another short introduction to fixed point arithmetics is [http://home.earthlink.net/~yatescr/fp.pdf this]. | Matlab also recently introduced a [http://www.mathworks.com/products/fixed Fixed Point Toolbox]. The Octave toolbox has been written independently of the Matlab toolbox and doesn't follow the same syntax. This might change in the future, if the author (DavidBateman) can be bothered to put the effort into making the required changes. Mathworks [http://www.mathworks.com/access/helpdesk/help/pdf_doc/fixedpoint/FPTUG.pdf documentation] for their fixed point toolbox also includes a generic discussion of fixed point numbers that might be a useful addition to the documentation supplied with Octave itself. Another short introduction to fixed point arithmetics is [http://home.earthlink.net/~yatescr/fp.pdf this]. | ||
==Adding a quadl like integrator to octave== | |||
quadl is an adaptive quadrature function available in MATLAB (from version 6 I think). It is very fast and accurate and surprisingly it's a small m-file. The algorithm is based on works by Prof. Walter Gander. | |||
Prof. Gander has two m files in his web page http://www.inf.ethz.ch/personal/gander/ which implement his algorithm along with a paper describing the algorithm. | |||
I have not delved deeply into the subject, but the adaptlobe.m function looks equivalent to quadl. Compatibility with MATLAB could be achieved by writing a small quadl wrapper function which simply calles adaptlobe, or by changing adabtlobe's name to quadl. | |||
I have contacted Prof. Gander to allow for distribution of his m-files in octave-forge. | |||
quadl, from the above source is now incorporated into octave-forge-2004-02-12. | |||
==Model transformation tools== | |||
http://mtt.sourceforge.net | |||
A set of tools for modelling dynamic physical systems using the bond-graph methodology and transforming these models into representations suitable for analysis, control and simulation. These tools use, and generate m files for, GNU Octave. | |||
==Optimisation== | |||
There is a variety of code in the octave-forge optimization package http://octave.sourceforge.net/optim/index.html | |||
==Parallelism == | |||
Operating Octave remotely and in parallel | |||
*distributed linear algebra from octave command line via [http://icl.cs.utk.edu/netsolve/index.html GridSolve] | |||
*OctaveForge has a parallel octave, allowing remote commands and data transfer | |||
*OctaveServer allows net connections to Octave | |||
*MPI toolbox for Octave http://atc.ugr.es/javier-bin/mpitb (This is included in a live CD ParallelKnoppix http://pareto.uab.es/mcreel/ParallelKnoppix/ which you can use without installation or configuration) | |||