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.
Curve fitting, multiple regression, error propagation, non-linear, multivariate, 2D 3D graph, math tools, graph and plot digitizer (digitizing), ODE.,

 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
Math, Math Software, Math Puzzles, Math Games, Math Tools, Equals, Equals Math, Math Jigsaw,