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The Four-Number Game
Place four numbers on the corners of a square. Place the positive difference of corners on the midpoint of each side. Repeat until the numbers are equal at some level and the differences become zero. The quadruples are called a Ducci sequence.
Contributed by:
Theodore S. Erickson
(Wheeling Jesuit University)
Based on work by: Dan Shapiro (Ohio State University)
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"
The Four-Number Game
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http://demonstrations.wolfram.com/TheFourNumberGame/
Contributed by:
Theodore S. Erickson
(Wheeling Jesuit University)
Based on work by: Dan Shapiro (Ohio State University)
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