|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.
First Steps with KAlgebra
Here is a short tutorial how to use the console tab.
Another resource that can be useful to learn more about KAlgebra comes with KAlgebra: Thetab. It contains examples of every function supported by KAlgebra. Maybe the best way to learn how to do things with KAlgebra.
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