E-mail: web@matracas.org

Algebra is a proof-of-concept computer algebra system that displays each step in formula simplification, and can understand different input syntaxes. I wrote it in Christmas 2005 for the first Extend Firefox contest.

The functions actually evaluated are:

- automatic simplification of addition and subtraction of integers:
- plotting of functions including arithmetic operators (
`+-*/`

), powers (`a^b`

, or`a**b`

in some input syntaxes), square roots (`sqrt`

), n-th roots (`root`

), basic trigonometric functions (`sin`

,`cos`

,`tan`

), integer and floating point numbers, and the numeric symbols`π`

and`ⅇ`

. - plots are exported to SVG and Postscript.

It shares some code with Sentido, and I plan to combine them eventually. For now it is available here: algebra.xpi, just updated to work in Firefox 10. To start it pick the "Algebra" option in the "Tools" menu, or press Control+Alt+A, or in Apple computers ⌘+Alt+A.