Bug#730260: kalgebra: incorrect simplification of symbolic expressions

[Marko Knöbl <marko.kn@gmail.com>]

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