KAlgebra: Difference between revisions

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[[Welcome_to_KDE_UserBase|Home]] >> [[Applications]] >> [[Applications/Education|Education]] >> [[KAlgebra]]
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|[[Image:kalgebra.png|48px]]
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|'''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.
|[[Image:kalgebra.png|64px]]
|'''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.<br />
It is part of the [http://edu.kde.org KDE Education Project].  
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[[Image:Kalgebra_welcome.png|thumb|350px|center| ''2D and 3D plots'']]
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[[File:Kalgebra_welcome.png|thumb|490px|center| 2D and 3D plots with '''KAlgebra''' and '''KAlgebra Mobile''']]


== The Console Tab ==
==First Steps with KAlgebra== <!--T:5-->
When you first open KAlgebra a blank window shows up, this is the main work area for calculus.


Let's get started with a little example of how KAlgebra works, just type:
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::2+2
Here are some tutorials:
Then type Return and KAlgebra will show you the result. So far it's easy.
* [[Special:myLanguage/KAlgebra/Console Tab| Using the console tab]].
* [http://tutorial.downloadatoz.com/kalgebra.html Drawing 3D Graphs]


However, KAlgebra is much more powerful than that, it started as a simple calculator, but now it's almost a CAS.
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You can define variables this way:
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'''.
::k:=3
And use them normally:
::k*4
And that will give you the result: 12
You can also define functions:
::f:=x->x^2
And then use them:
::f(3)
Which should return 9.
You can define a function with as many variables as you want:
::g:=(x,y)->x*y
The possibilities of defining functions are endless if you combine this with the piecewise. Let's define the factor function:
::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:
==Screenshots== <!--T:13-->
::x+x+x+x
or
::x*x
It doesn't work on some complex structures, though. Only basic support so far.


Moreover, KAlgebra has support for differentiation.
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An example of the syntax:
Here you can see some [[Special:myLanguage/KAlgebra/Screenshots|screenshots]]
::diff(x^2:x)


If you have used KAlgebra, you will have noticed the syntax completion support, which is very helpful.
==Mobile== <!--T:22-->


Another resource that can be useful to learn more about KAlgebra comes with KAlgebra: The Dictionary tab
<!--T:23-->
A mobile version for '''Plasma Mobile''' and  '''Android''' is also available.


It contains examples of every function supported by KAlgebra. Maybe the best way to learn how to do things with KAlgebra.
==Documentation== <!--T:15-->


==Documentation==
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* [https://docs.kde.org/stable/en/kdeedu/kalgebra/index.html The KAlgebra Handbook]


[http://docs.kde.org/development/en/kdeedu/kalgebra/index.html '''KAlgebra''' Handbook]
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* [http://swiftscythe.blogspot.com/2011/02/how-to-work-with-complex-numbers-in.html How to work with complex numbers in KAlgebra]


==Other== <!--T:17-->
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* [[Special:myLanguage/KAlgebra/Homework|Homework]] is a page which show some uses of KAlgebra in real world.
<!--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.
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[[Category:Education]]
[[Category:Education]]
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Latest revision as of 17:28, 23 May 2019

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 with KAlgebra and KAlgebra Mobile

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

Mobile

A mobile version for Plasma Mobile and Android is also available.

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.