1)   Auto2Fit 3.0
Auto2Fit is a robust, flexible, easiest-to-use regression, curve fit, global optimization, equation solving and parameter estimation program by using Evolution Algorithms (EAs).
Nonlinear Regression, Global Optimization, Genetic Algorithms, Parameter Estimation, Curve Fit,

 2)   CHEMIX School 3.00
CHEMIX School - Software for Chemistry It is equipped with a periodic table, molecular 3-D viewer, curve fit, spectroscopy, conversion table, dictionary and many advanced calculators. Chemistry lessons and problems are included.
chemix, chemistry, software, curve fit, plotter, molecular 3-D viewer, gas equations, periodic table, conversion, weak,

 3)   Graphit 1.12
Low cost 2D function plotting software. Use up to 8 functions with cascades. Displays 2 simultaneous plots with cursors positions and deltas. File load, save, and print. Input point overlays for curve fitting. Trig, Ln, Log functions supported.
Graph plot, function plot, math, graphing software, home school, curve fit,