A simple interface to the Sage computer algebra system. Through Sage it provides access to the GAP, GP, Maxima, Octave, R, and Singular computer algebra systems as well as Python and HTML. Knowledge of one of these systems is highly recommended.

This is a lightweight alternative to the Sage online notebook. It is optimized for quick calculations. Network connectivity is required to perform calculations, but results are stored on the device for offline perusal and can be easily emailed to colleagues. Several buttons are added to the keyboard to simplify input.

Sage is an open source computer algebra system combining many open source components and providing a consistent Python interface. There is an online notebook interface as well as a simplified web interface for quick calculations.