2010-02-09

KAlgebra - A powerful Calculator for KDE 4

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. KAlgebra is part of the KDE Education Project.

Click for the unaccepted Wikipedia Entry

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:

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:

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 withe 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:

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)

Hope you've found this useful.

If you have used KAlgebra, you will have noticed the syntax completion support, which is very helpful.

Another resource that can be useful to learn more about KAlgebra comes with KAlgebra: The Dictionary tab

It contains examples of every function supported by KAlgebra. Maybe the best way to learn how to do things with KAlgebra.

=-=-=-=-=
Powered by Bilbo Blogger

4 comments:

Anonymous said...

Link exchange is nothing else but it is simply placing the other person's blog link on your page at suitable place and other person will also do same in favor of you.

Check out my page - bathroom remodeling

Anonymous said...

Your post haѕ ρroνen helpful to mе peгѕonally.
Ιt’ѕ extrеmely infоrmativе аnd уou
аre naturallу extremelу knowledgeable
in this геgion. Yοu possess ροpped
my pеrsonal еyeѕ for you to numeгous thοughts about this kind of
subject matter along with intriquing, notable and reliаblе ωrіtten cοntent.


Feel free to vіѕit mу site - twelvebrand.com
Here is my site ... phentermine

Anonymous said...

Thank you for the good writeup. It in truth was once a
amusement account it. Glance complicated to far brought agreeable from you!
By the way, how can we be in contact?

My blog: Jocuri masini

Anonymous said...

What's up, its good paragraph regarding media print, we all understand media is a great source of data.

Feel free to surf to my homepage Juegos Online Gratis