Award-winning unit conversion program. Hundreds of units are included, along with detailed descriptions giving the history and definitions of units. Features include conversion tables, adjustable number of decimal places, and conversion formulas. Users can even add their own units by editing the ASCII data file. UnitStar is an indispensible tool for science, industry, education, travel, and simple curiosity.
DataFitX
DataFitX is a COM component (in-process ActiveX DLL) which allows you to add a powerful nonlinear regression (curve fitting) engine to your software with just a few simple lines of code in any software or development environment that supports COM.
Writing Numbers Part 2
Middle-School (grades 5 through 9) math program written to provide skills in context. Given the English language version of a number (e.g. one thousand sixty-five and nine tenths) students must type in the numeral (e.g. 1065.9).
Valgetal Falling Numbers
Valgetal ("falling numbers" in Dutch) is an educational falling blocks-style math game with 20 progressively difficult levels for addition, subtraction, multiplication, and division. It is a clever twist on mathematical games and lots of fun.
Graphing Functions
Middle-School (grades 5 through 9) math program written to provide skills in context. Students find and plot solutions to parabolas, hyperbolas, and absolute value functions using an on-screen Cartesian plane and five moveable points.
Prime Derivatives
Enter any number up to twenty digits, and click the button. The result will be a string of unique prime numbers that can evenly be divided into the number that was entered.