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Bug#730260: marked as done (kalgebra: incorrect simplification of symbolic expressions)

Your message dated Sun, 01 Dec 2013 23:16:21 -0300
with message-id <4269216.YjZ3yebBbd@luna>
and subject line Re: Bug#730260: kalgebra: incorrect simplification of symbolic expressions
has caused the Debian Bug report #730260,
regarding kalgebra: incorrect simplification of symbolic expressions
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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-- 
730260: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=730260
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: kalgebra
Version: 4:4.8.4-1
Severity: important

Dear Maintainer,

I am experiencing very strange and incorrect simplifications of symbolic
expressions which I enter in KAlgebra.

For example, if I enter the expession "2-(x+2-2*x)", I would expect the
expression to be simplified to "x".

Instead, this is what happens:

If I enter the above expression into the console, it is changed to
"2-(x+2)-2*x" and the result is printed as "-x" (Which neither fits the
original formula nor the modified one). If I enter the expression in the
2D Graph tab, the plot shows the graph of f(x) = -x


-- System Information:
Debian Release: 7.2
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.2.0-4-amd64 (SMP w/4 CPU cores)
Locale: LANG=de_AT.UTF-8, LC_CTYPE=de_AT.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages kalgebra depends on:
ii  kalgebra-common           4:4.8.4-1
ii  kde-runtime               4:4.8.4-2
ii  libanalitza4abi1          4:4.8.4-2
ii  libanalitzagui4           4:4.8.4-2
ii  libc6                     2.13-38
ii  libgl1-mesa-glx [libgl1]  8.0.5-4+deb7u2
ii  libglu1-mesa [libglu1]    8.0.5-4+deb7u2
ii  libkdecore5               4:4.8.4-4
ii  libkdeui5                 4:4.8.4-4
ii  libkhtml5                 4:4.8.4-4
ii  libkio5                   4:4.8.4-4
ii  libkparts4                4:4.8.4-4
ii  libqt4-opengl             4:4.8.2+dfsg-11
ii  libqt4-xml                4:4.8.2+dfsg-11
ii  libqtcore4                4:4.8.2+dfsg-11
ii  libqtgui4                 4:4.8.2+dfsg-11
ii  libstdc++6                4.7.2-5

kalgebra recommends no packages.

kalgebra suggests no packages.

-- no debconf information

--- End Message ---
--- Begin Message --- 
Version: 4:4.11.3-1

On Saturday 30 November 2013 18:05:07 Marko wrote:
> Ok, thanks for the explanation. The reason I reported it here was that
> I'm using KAlgebra 4.8 from Debian stable while the most recent
> upstream version of KAlgebra is 4.11. Maybe someone can test this on
> 4.11 and see if it's still there? Then I'll report it to the KDE devs!

Ah, thanks for explaining this last point. I'm normally more used to users 
using testing/unstable, so sometimes I miss this point.

OK, I've tested your example and works fine here using 4.11.3, so I'm closing 
it against this last version (which means the bug remains open for stable).

Saddly I don't think this bug amerits an RC severity, nor I know if the fix is 
trivial enough for letting it go to stable :-(

Kinds regards, Lisandro.


-- 
Lisandro Damián Nicanor Pérez Meyer
http://perezmeyer.com.ar/
http://perezmeyer.blogspot.com/

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