Re: 2 Octave 2.9.x builds on MinGW

[David Bateman]

Jun Ohta wrote:
> Thank you for your comment, Bill.
> I have tried David's build from "David's Octave webpages".
> There are 3 points.
>
> [1] I have checked calculation speed using my complicated script.
> Octave 2.1.50 (standalone)     8.6220 sec
> Octave 2.1.72 (cygwin)        17.969  sec
> Octave 2.9.4  (minGW)          7.9534 sec
> I am satisfied with the speed of the minGW version.
>   
There is no ATLAS in my 2.9.4 build yet (though I working on it) so it 
should eventually be even faster.

> [2] Is "Portable Octave" on portable hard disk possible using minGW 
> version? Apart from the speed issue, "Portable Octave" would have 
> advantage for some people including me, I think.
>   
I'd intended to have a single environment variable OCTAVE_HOME defined 
that allowed the position of the installation to be defined. In its 
absence it assumes C:/octave. So you'd need to modify the script or 
install the environment variable.

> [3] I have noticed the following behavior on the version 2.9.4. This 
> behavior is important for matlab compatibility, I think.
>
> Octave version 2.9.4 on minGW, MS-windows
> --------------------
> octave.exe:1> '\n'
> ans = \n
> octave.exe:2> '\r'
> ans = \r
> octave.exe:3> '\r\n'
> ans = \r\n
> octave.exe:4> "\n"
> ans =
>
> octave.exe:5> "\r"
> ans =
> octave.exe:6> "\r\n"
> ans =
>
> octave.exe:7>
> --------------------
>   
Yes this behavior was introduced for matlab compatibility especially on 
windows platforms. Consider what "C:\octave" would be interpreted as...

D.



> Jun Ohta
> Okayama University
> www.metabo-info.org
>
>
>
> Bill Denney <address@hidden> wrote:
> (2006/03/17 14:26)
>
>   
> > On Fri, 17 Mar 2006, Jun Ohta wrote:
> >
> >     
> > > Can the above 2 Octave 2.9.x builds on MinGW co-exist on one MS-
> > > windows PC?
> > >       
> > Yes, but I believe that Octave Workshop uses David's build.  With Workshop 
> > version 0.10, you should be able to run 
> > c:\octave-workshop\octave-launcher.vbs to run Octave without Workshop.  I 
> > think in version 0.9 and previous, there was an octave.bat file in the 
> > directory, but I'm not sure.
> >
> >     
>
>
>
>
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Octave is freely available under the terms of the GNU GPL.

Octave's home on the web:  http://www.octave.org
How to fund new projects:  http://www.octave.org/funding.html
Subscription information:  http://www.octave.org/archive.html
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