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Re: Help me something about GNU Octave

From: Tatsuro MATSUOKA
Subject: Re: Help me something about GNU Octave
Date: Fri, 18 Jan 2008 08:35:43 +0900 (JST)


   ""John W. Eaton" <address@hidden>"wrote
>On 18-Jan-2008, Tatsuro MATSUOKA wrote:
>| Using only *.m files perhaps, it is not easy.
>| Because the speed of *.m file for octave is limited.
>| (MATLAB uses JIT technique so that sspeed of executing of *.m file is fast.)
>It depends.  A calculation like
>  [u, s, v] = svd (rand (10000, 10000));
>is "large" but almost as fast as native C/C++ code because it uses
>optimized built-in functions.  JIT won't speed that up.

Yes! I have forgotten to mention Matrix calclation power of octave. 
For matrix calulataion, Octave has enough speed.
You have to write script as vectrized as possible.
In addition, the powerful sparse matrix supports provide us to make us the 
large scale partial
diffrential equation solving very easy.

This is also one of the reason to use the octave.

I think that the octave is a really revolutional tool.

Thanks to John and other dvelopper to provide us a very powerful tool.





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