Archive for July, 2006

AY. Dollar Cost Averaging

July 29, 2006 · The Mathcast, answers, math puzzles, numbers

A common investment strategy takes advantage of the subtleties of averaging.

 
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AX. Averages are not what they seem!

July 23, 2006 · Favorites, The Mathcast, math puzzles, numbers

Is a man of perfectly average height, and perfectly average weight, too heavy for his size? Averages are not what they seem to be.

 
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AW. Will we run out of Social Security Numbers?

July 19, 2006 · The Mathcast, numbers

When will the crisis come? When will we run out of Social Security Numbers, and other musings.

 
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AV. Dennis Shasha Answers

July 6, 2006 · The Mathcast, answers, guests, numbers

Dennis Shasha, author of The Puzzler’s Elusion explains how his finger multiplication works!

 
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AU. Dennis Shasha asks about Polish Multiplication

July 1, 2006 · The Mathcast, guests, numbers

Dennis Shasha, puzzle columnist for Scientific American, asks about a curious way to multiply numbers on your fingers.

 
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