Education - Mathematics

StatCalc 4.1

StatCalc is a user-friendly statistical calculator designed to help students learn statistics and use 12 statistical modules to calculate common descriptive and inferential statistics. It is also a valuable desktop tool for researchers. The context sensitive tutorial quickly gets students started making their own calculations. All statistics modules are supported with the tutorial and a hypertext statistics handbook with formulas, examples, practice exercises, and definitions. You can edit, save, and print a collection of analyses, display frequency distributions and scattergrams, and import/export ASCII data files. The 138 page Statistics Handbook is included in Adobe Acrobat pdf format.

Dino Numbers 4.2

Exciting windows math practice game for children ages 7-12 with animation, music, and sound effects. The simplicity and ease of play helps your child develop valuable arithmetic skills. The loveable Derik the Dinosaur continually thwarts the shenanigans of Rex the Tyrannosaurus. The object of the game is to collect cows in a maze. To rescue cows from Rex, Derik must solve various arithmetic challenges. Each level is completed when a player collects all cows on that level [shareware edition has 2 levels; registered edition has 30 total levels of play]. Each level includes bonus items (milk cartons, haystacks, dino snacks, and 'super' snacks) for earning more points.

Match-n-Freq 5.02

Pulse shaping filter program that finds the pole-zero locations of a transfer function, H(s), for a matched filter. H(s) equals a -desired- signal (Yout) divided by a given input signal (Yin). Both Yout and Yin are functions of frequency. Group delay may also be calculated to compliment a given data set, thus, providing a flat group delay. Minimizing Intersymbol Interference in a read/write channel for disc drives by shaping and slimming an isolated readback pulse was the main objective for writing this program. For more info, see Kost, R. and P. Brubaker; 'Arbitrary equalization with simple LC structures'; IEEE Transactions on Magnetics, Nov. 1981, pp 3346-3348.

CurvFit 5.11.5

CurvFit (tm) is a curve fitting program for Windows. Lorentzian, Sine, Exponential and Power series are available models to match your data. A Lorentzian series is highly recommended for real data especially for multiple peaked and/or valleys data. CurvFit is an example of Calculus programming... ie. minutes to solve, days or years to understand solution and what it implies (e.g. wrong model, sampling rate error, etc.). Helps learn 1) whether math model is good for given data; 2) convergence implies a reasonable solution; 3) how to select new starting initial parameter values. See comments in EX*.? files for ideas on how to converge via solvers. Equation Calculator and Hardcopy Plot prints are now (6/2005) available.