Scientific Graphing Calculator FREE on Android (Samsungapps)

Ok, maybe this is an Android freebie for a niche market but I thought it would be quite useful for students with Samsung phones. It also shows how deep you have to dig to find Android freebies. :(

BisMag Math Tools" is a powerful mathematical tool for Android consists of 3 calculators. "Matrix Calculator", a tool to calculate the decompositions and various other matrix operations,"Equation Solver" a tool that can solve equation of degree n.