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In a certain lake, swarming with red geese, the tip of a lotus bud was seen to extend a span [9 inches] above the surface of the water.
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.
In this fascinating and accessible book, the author devotes one lively, informative page of description and one striking, full-page illustration to each of 250 milestones in mathematics.
A brief version of the author's well-known history of mathematics text.
Given a pendulum as shown. The height of the pendulum is two units and its horizontal width is 2 units. What is the area of the pendulum?

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

An official asks a woman why she has so many bowls to wash. The woman explains that she had dinner guests who ate meat, rice, and soup. Judging by the number of bowls, how many guests were there?
NCTM Meeting in Philadelphia
The Joint Mathematics Meetings are being held in New Orleans, LA from January 5-8, 2007.

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