FindGraph
A comprehensive graphing, curve fitting and digitizing tool. The program offers 10 generic fits, including linear regression, logistic functions, fourier approximation, neural networks, plus a library of over 120 industry-specific 2D formulas. A built-in wizard helps applying different curve fits to discover the model that describes data the best. Smooth, interpolate, subtract, differentiate, integrate, and transform data and curves. Comes with 200 built-in common graphing 2D functions with support for polar, cartesian and parametric equations.

By: UNIPHIZ Lab
Requires: Windows 98/Me/2000/XP/Vista
Price: $59.95

Math Educator
A simple tool to teach kids addition, subtraction, multiplication and division. Easy-using and redesignable interface are some of the features. Has a multilingual interface with languages included Dutch, English, French, and Turkish.

By: Nontube Software
Requires: Windows 9x/2000/XP/Vista
Price: Free

GraphSight
A convenient tool to plot and explore 2D math functions. The program is based on an object-oriented concept by which every graphic object is a real interactive object.

By: Cradle Fields
Requires: Windows 98/Me/NT/2000/XP
Price: $29.95

ESB PDF Analysis
Provides everything needed for using discrete & continuous probability distributions in a single application. Features include: binomial, poisson and normal distributions, inverse of normal distributions, lists of binomial coefficients and factorials, integrated help system.

By: ESB Consultancy
Requires: Windows 98/2000/XP
Price: $30.00+

Equation Grapher with Regression
A program for plotting and analyzing functions. Once you have plotted a function it automatically finds roots, max/min values, intersections and so on. Calculates and views the integration area. A help file with descriptive pictures is included. Several zoom functions, a background grid, the ability to change the text of the x- and y-axis, file saving (function file or BMP/GIF) and print graphs directly or copy them to the clipboard for pasting.

By: MFSoft International
Requires: Windows 98/Me/NT/2000/XP
Price: $29.95