Here is an update to Algebra/Calculus Assistant. It now features a hand full of additional features.

Changes:

–Got rid of the find slope and y-intercept option and replaced it with the equation conversions (standard to y-intercept
and vice versa). The standard to y-intercept still says the slope and y-intercept, though.
–Added function to find the inverse of a 2×2 matrix
–Added function to simplify any fraction into its simplest form

http://forums.qj.net/showthread.php?t=136497