MathCruncher!

MathCruncher is a neat app for high school math. It contains a large selection of calculators that can do geometry, algebra, and some trigonometry. Some of its features include:FactoringFinding Zeros from equation coefficientsSimplest Radical FormQuadratic EquationLogarithms2x2 and 3x3 DeterminantsArithmetic and Geometric SequencesSine, Cosine, Tangent and their inverses