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Code Listing by Geoff Boynton

Code 1-5 of 5   






This is an improvement on the previously submitted recursive program that finds all possible solutions to a given sodoku puzzle.

Thanks to a clever suggestion by Leif Warland, this new program finds solutions about 20 times faster.



This is a recursive program that finds all possible solutions to a given sudoku puzzle. It's not the most efficient algorithm, but the entire function has less than 20 lines



Run this program by calling ?contractometer.m?

When a contraction starts, click the mouse on the upper left green 'Contraction Start' button. This will start the clock in the upper right, and a horizontal red line will rise over time...



This function (fit.m) is a simple interface to MATLAB's 'fminsearch' routine. It allows the user to specify which parameters to be set free, and which to be held constant.

Run 'FitDemo.m' for a demonstration.



Plots a graph of games above .500 as function of time for a given major league baseball division.

Provides a legend of the current standings along with the 'magic number' needed to clinch the title (if between 0 and 30).