AU. Dennis Shasha asks about Polish Multiplication
07/01/06 • 4 min
Dennis Shasha, puzzle columnist for Scientific American, asks about a curious way to multiply numbers on your fingers.
Dennis Shasha, puzzle columnist for Scientific American, asks about a curious way to multiply numbers on your fingers.
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AT. Peter Winkler Answers
Peter Winkler answers. Another puzzle next week!
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AV. Dennis Shasha Answers
The solution is a quick bit of algebra, but how do you explain it on the air?
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