KAlgebra: Difference between revisions

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==First Steps with KAlgebra== <!--T:5-->
==First Steps with KAlgebra== <!--T:5-->


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<!--T:11-->
Here is a short [[Special:myLanguage/KAlgebra/Console Tab|tutorial how to use the console tab]].
Here are some tutorials:
* [[Special:myLanguage/KAlgebra/Console Tab| Using the console tab]].
* [http://tutorial.downloadatoz.com/kalgebra.html Drawing 3D Graphs]


<!--T:7-->
<!--T:12-->
Let's get started with a little example of how KAlgebra works, just type:
Another resource that is useful in learning more about '''KAlgebra''' is the <menuchoice>Dictionary</menuchoice> tab. It contains examples of every function supported by '''KAlgebra'''. Maybe the best way to learn how to do things with '''KAlgebra'''.
 
    2+3
 
Then type Return and KAlgebra will show you the result. So far it's easy.
 
However, KAlgebra is much more powerful than that, it started as a simple calculator, but now it's almost a CAS.
 
You can define variables this way:
 
    k:=3
 
And use them normally:
 
    k*4
 
And that will give you the result: 12


You can also define functions:
==Screenshots== <!--T:13-->


    f:=x->x^2
<!--T:14-->
Here you can see some [[Special:myLanguage/KAlgebra/Screenshots|screenshots]]


And then use them:
==Documentation== <!--T:15-->


    f(3)
<!--T:16-->
* [https://docs.kde.org/stable/en/kdeedu/kalgebra/index.html The KAlgebra Handbook]


Which should return 9.
<!--T:21-->
* [http://swiftscythe.blogspot.com/2011/02/how-to-work-with-complex-numbers-in.html How to work with complex numbers in KAlgebra]


You can define a function with as many variables as you want:
==Other== <!--T:17-->


    g:=(x,y)->x*y
<!--T:18-->
* [[Special:myLanguage/KAlgebra/Homework|Homework]] is a page which show some uses of KAlgebra in real world.


The possibilities of defining functions are endless if you combine this withe the piecewise. Let's define the factor function:
<!--T:19-->
* [http://edu.kde.org/applications/school/kalgebra/ The Project Page] contains further helpful links, including links needed for bug reporting or contacting the authors.  Here you will find information about mailing lists and the IRC channel.


    fact:=n->piecewise { n=0 ? 1, n=1 ? 1, ? n*fact(n-1) }


Yes! KAlgebra supports recursive functions. Give some values to n, to test it.


    fact(5)


    fact(3)


KAlgebra has recently started support for symbolic operations, to check it out, just type:
<!--T:20-->
 
    x+x+x+x
 
    x*x
 
It doesn't work on some complex structures, though. Only basic support so far.
 
The last thing I'm going to mention about KAlgebra is its support for differentiation.
 
An example of the syntax:
 
    diff(x^2:x)
Another resource that can be useful to learn more about '''KAlgebra''' comes with '''KAlgebra''': The <menuchoice>Dictionary</menuchoice> tab. It contains examples of every function supported by '''KAlgebra'''. Maybe the best way to learn how to do things with '''KAlgebra'''.
 
==Documentation== <!--T:8-->
 
<!--T:9-->
* [http://docs.kde.org/development/en/kdeedu/kalgebra/index.html KAlgebra Handbook]
 
<!--T:10-->
* [http://en.wikipedia.org/wiki/User:Swiftscythe/KAlgebra Wikipedia]
 
<!--T:11-->
* [http://community.kde.org/Education/KAlgebra/Homework Use of kalgebra in real word]
 
<!--T:12-->
[[Category:Education]]
[[Category:Education]]
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Revision as of 16:04, 15 October 2014

Home » Applications » Education » KAlgebra

KAlgebra is a calculator with symbolic and analysis features that lets you plot 2D and 3D functions as well as to easily calculate mathematical expressions.

It is part of the KDE Education Project.

2D and 3D plots


First Steps with KAlgebra

Here are some tutorials:

Another resource that is useful in learning more about KAlgebra is the Dictionary tab. It contains examples of every function supported by KAlgebra. Maybe the best way to learn how to do things with KAlgebra.

Screenshots

Here you can see some screenshots

Documentation

Other

  • Homework is a page which show some uses of KAlgebra in real world.
  • The Project Page contains further helpful links, including links needed for bug reporting or contacting the authors. Here you will find information about mailing lists and the IRC channel.