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The authors provide an analysis and English translation of the argument by a little known French mathematician that calculus should be based on series rather than on infinitesimals.

An erect pole of 10 cubits has its base moved 6 cubits. Determine the new height and the distance the top of the pole is lowered.
There is a regular pentagon. The length of its side is a. Find the area of the pentagon. Generalize your result for a nonagon.
Four episodes in the history of geometry are discussed, where dynamic geometry helps in understanding the ideas.
Chuquet claimed that if given positive numbers a, b, c, d then (a + b) / (c + d) lies between a/c and b/d. Is he correct? Prove your answer
A horse halving its speed every day runs 700 miles in 7 days.
Given a semicircle, Prove that if O is the circle's center, DO=OE.
The ICM meets every four years. This year, the meeting takes place August 22-30 and is being held in Madrid. Section 20 of the Congress deals with the history of mathematics.
An English translation of Eratosthenes' Geography, which includes "On the Measurement of the Earth."
The radius of a circle is 3.20 meters. Compute to within .001m the areas of the inscribed and circumscribed equilateral triangles.

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