1)   LAB Fit Curve Fitting Software 7.2.30
Curve fitting (fit), nonlinear regression, treatment of data, basic statistics, error propagation, 2D and 3D graphs, confidence band, uncertainty, error bars, extrapolation, chi-square, correlation coefficient tests, covariance matrix, math tools.

 2)   EQUALS Math Jigsaw Puzzles 1.02
Don't Just Practice! Math drill tool that also develops understanding of math using orderly tables and pictures