Scientific

Maemo Periodic is a periodic table that shows a great quantity of information about chemical elements.

A simple function calculator and plotter.

This is a port of Free42, an HP 42S emulator.

Octave is a (mostly Matlab (R) compatible) high-level language, primarily intended for numerical computations.

Lybniz is an easy to use mathematical function graph plotter using pyGTK.

Package for making 2D and 3D graphs from data and functions.

EasyChem is a program that helps you creating high quality diagrams of molecules and 2D chemical formulas that can be exported to PS, and fig.