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Differences between Octave 2.1.7x and 2.9.x


From: Matthias Brennwald
Subject: Differences between Octave 2.1.7x and 2.9.x
Date: Tue, 7 Nov 2006 21:50:37 +0100

Dear all,

is there a list of the differences between Octave 2.1.7x and 2.9.x?

I recently upgraded from 2.1.72 to 2.9.9 (running under Mac OS X 10.4). I am quite annoyed by the fact that my code does not work as expected anymore. For instance, '__gnuplot_set__' and 'mesh' seem to behave differently (at least my plotting routines are broken), and I had to rewrite my startup file because the behavior of 'path' command changed. I guess there are many more changes that I didn't find yet. In other words: I am pretty sure my code is broken with 2.9.x, but I don't know how and where. How can I find out what has changed?

I guess most of the changes from 2.1.7x to 2.9.x were made to improve the compatibility with Matlab. At the same time, however, Octave is not compatible with itself anymore! Also, it seems to me that these changes were made out of the blue (which, I hope, is not the case!). Before changing commands, the user should at least be notified or warned when using commands that will (potentially) change in the future. One may argue that 2.9.x should be considered as a test version, and that I therefore shouldn't be complaining, which is propably right. Yet, I guess the changes will make it into version 3.0, which MUST therefore come with a complete list of changes. And please don't hide this list anywhere deep in the heap of the files coming with Octave. How about an online history whose URL is displayed during the startup of Octave?

Matthias

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Matthias Brennwald
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