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- Content .- Fans (2) .- Knowledge Base  . 

KAlgebra

   0.7  

KDE Education

Score 84%
KAlgebra
zoom


KAlgebra
zoom


KAlgebra
zoom


Link:  Link
Minimum required   KDE 4.x
Downloads:  15888
Submitted:  Jun 26 2005
Updated:  Jan 27 2008

Description:

KAlgebra is a MathML-based graph calculator. Besides it was initially mathml oriented now it can be used by everyone with little mathematic knowledge.

KAlgebra is on KDE-Edu for now, I am not posting any source code since it would be the same as you would find inside it, BTW if you still a KAlgebra-alone package tell me and I'll make it.




Changelog:

There are a big lot of changes.

Port to KDE/Qt4, New calculation engine, simplification, differentiation...




LicenseGPL
Source(Source bz2 file)
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 nice!

 
 by soimpossible on: Jun 26 2005
 
Score 50%

nice stuff. i was recently thinking that it would be nice to have a program similar to mathematica, running on kde.

Although currently I have no code. I did a fair amount of research into what would be needed..

Have you any plans to integrate KAlgebra with a CMS, like yacas? http://www.xs4all.nl/~apinkus/yacas.html

Also, there is a python library for mathml called pymathml that is supposed to be able to render MathML: http://pymathml.sourceforge.net


If you have no plans for these I may try and base something off of your work.


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 Re: nice!

 
 by aleixpol on: Jun 26 2005
 
Score 50%

Hi!
I didn't know any of those projects you mentioned.
Nowadays I am using KHtml for the logs. To represent the expressions I am converting Content MathML into Represention MathML and passing it to the khtml engine with a css stylesheet.
Changing it into another representation mml viewer hasn't a lot of sense, a content mml plotter would be a lot better (gecko does, but I don't think it would be a good idea to use gecko on a kde-based app).
I have looked at Yacas's web right now but I haven't been able to notice how I could benefit from Yacas on KAlgebra or KAlgebra on Yacas, if you could show me I'd thank you very much... :P
Now, I am going to improve a bit the opperations engine and give more possibilities like derivation and integration and a better standar compliance, but if you have other idea, I'd like very much you to tell me.

Thanks for looking at KAlgebra! :)


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 Re: Re: nice!

 
 by soimpossible on: Jun 26 2005
 
Score 50%

I'm used to using Mathematica, which is more of a "notebook" type program. When you type commands into the console it spits out what you typed in into a more elegant form, ie like pymathml draws things.

However, it also lets you edit things in that form.

It wouldn't be at all _easy_ to acheive this with a KDE app at the moment.

As far as I am aware, there exists no KDE/QT widget that can render MathML, let alone let you edit it.

I have plans to hack together something that I can use to replace Mathematica altogether for use in a Physics lab.

Mathematica is super ugly, not to mention closed source. It's also completely unusable and very unstable. Whoever designed Mathematica's GUI was not a human.

For me, using yacas would be great, since it does calculus for you. Such as integration, differentiation. I guess this isn't required for simple algebra.

But it is something that I need, and will probably integrate into what I plan to hack together.

The basic features of what I intend to code are:

-> Maths notebook XML file format (using XML)
-> Nice MathML rendering using pymathml
-> Plotting using: http://matplotlib.sourceforge.net/screenshots.html
-> Some calculus stuff with yacas.

Although I am currently coding 2 open source projects so this will have to wait for the time being!


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 Re: Re: Re: nice!

 
 by aleixpol on: Jun 26 2005
 
Score 50%

I think KAlgebra is not what you are looking for. Anyway, feel free to pick anything from KAlgebra if you need to (as it is GPL) and if you want, you can ask me if you have any doubt (and perhaps I'll be able to solve it).

Bye!


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 Re: Re: Re: Re: nice

 
 by soimpossible on: Jun 26 2005
 
Score 50%

cool. thanks!


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 Cool application

 
 by virtualmeet on: Jun 27 2005
 
Score 50%

Hope more visual application like this will show up into Linux (right now more than 90% are theses "gray" administratives tools ;-) )
Nice work.


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 nice!

 
 by luqasz on: Jul 2 2005
 
Score 50%

The app is really good! but it would be nice if it has a zoom option :)

By the way, I found that if I type eg -3^ the app draws me function properly: y=3, but if I type x^ the program doesn't draw anything!? maybe I'm wrong?


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 Re: nice!

 
 by luqasz on: Jul 2 2005
 
Score 50%

Uupss... My fault, I looked into src and solved my problem :/


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 Re: nice!

 
 by aleixpol on: Jul 3 2005
 
Score 50%

I'm glad you like it.
If you have any doubt about the parser reliability, you can switch to the mathml console and see which is the output (if someone thinks that there is something wrong, please tell me).

Before I end up all the GUI, here you have some key attatchments for 3d:
W: zoom in
S: zoom out
RePag, AvPag & arrows: rotate

In 2D you can move arround by dragging with the middle mouse button, still no zoom but will have in future :).

Bye!


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 2D plot widget

 
 by unclewerner on: Aug 29 2005
 
Score 50%

http://www.cyblogic.de/~frank/fun/kalgebra.20050823+qfmplot.tar.bz2 I patched KAlgebra to use my plot widget and hope you like it;) May save you some time to become to bored about 2D gfx -- 3D is anyway more interesting. http://www.cyblogic.de/~frank/fun/kalgebra_with_franks_plot.png I couldn't handle than automake system and simple wrote a qmake project file. You know to use qmake? I'm still in the newbie club. I hope you are not to angry about modifying to much of your code structure. kompare may explain it. A single problem I noticed is, that my QfmPlot can't handle nan. You may not feed functions in range where those functions are undefined.


Codito ergo sum.
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 klik://kalgebra ?

 
 by pfeifle on: Oct 6 2005
 
Score 50%
pfeiflepfeifle
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aleixpol,

you asked on the klik website for a klik://kalgebra package?

But it works already!

(It gives you version 0.2.1).

You asked for a packager?

We don't do this, usually -- we provide "recipes" which help the klik client to convert existing binaries (.debs for Sarge are the best; most portable) into .cmg files.

So if you can provide us a permanent symlink "kalgebra-latest" which points to the latest binary package (whatever the real version is), we can surely make klik://kalgebra-latest work for you!

We can even make simple *.tar.gz (compiled by you) work, or RPMs -- it is just a bit more effort for us, and the risk is higher for you that the package doesnt work for many of your users/testers.

If you compile on a Debian Sarge machine (heck, you could even use an old Knoppix for this), and just create a binary tarball with everything included, we can do the rest....

Cheers,
Kurt


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 Re: klik://kalgebra ?

 
 by meyerm on: Oct 9 2005
 
Score 50%

Hi Kurt,

I really like klik to simply try out software found here at kde-apps. Good work.

Concerning kalgebra: would it be possible to add some kind of subscription on the klik website? I'd like to try out the latest kablgebra and since it is not yet available it would be great if I could be notified by mail (for now I will just "subscribe" to this thread hoping you will post a "it's there" soon ;-) ).

Thanks,
M


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 Re: Re: klik://kalge

 
 by aleixpol on: Oct 10 2005
 
Score 50%

I sent a mail to pfeifle actually, but had no response.

The main question is:
Fine, I have to compile with sarge, but what do I have to send? executable and icons? Where I have to send it? :P

I'd really like to have a .deb package, but I don't think it is possible at the moment (I've got not enough time to do it, if someone wants, to do it, only have to do it (and tell me please :).

Bye!


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 klik://kalgebra

 
 by probono on: Oct 16 2005
 
Score 50%

klik://kalgebra is 0.3.1a-1 now :)


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 Sarge .deb package

 
 by kjuanlu on: Oct 16 2005
 
Score 50%

Yesterday I installed debian sarge on qemu and I compiled kalgebra. Here is the deb package: http://proli.net/kalgebra/kalgebra_0.3.1a-1_i386.deb

Somebody can test the deb package?


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 Re: Sarge .deb packa

 
 by aleixpol on: Oct 25 2005
 
Score 50%

Tested and working, thanks kjuanlu


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