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Convergence articles

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When knowing the sum of their ages along with another equation, determine how old a father and son are.
A history of the various algebraic structures that came together to give us "abstract algebra" by early in the twentieth century.
IOU
I owe a man the following notes: one of $800 due May 16; one of $660 due on July 1; one of $940 due Sept. 29. He wishes to exchange them for two notes of $1200 each and wants one to fall due June 1. When should the other be due?
There is a log 18 feet long, the diameter of the extremities being 1 ft and 2.6 ft respectively...
Given four numbers whose sum is 9900; the second exceeds the first by 1/7 of the first...
Now a good horse and an inferior horse set out from Chang'an to Qi. Qi is 3000 li from Chang'an.

The author uses her poem, 'The Enigmatic Number e,' to show how poetry about the history of mathematics can be used to enrich and enliven mathematics instruction.

A brief version of the author's well-known history of mathematics text.
Three men have a pile of money, their shares being 1/2, 1/3 and 1/6. Each man takes some money from the pile until nothing is left.

A history of the concept of zero from as far back as the Babylonian period, with philosophical excursions into the meaning of "nothing".

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