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Convergence articles

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There is a mound of earth in the shape of a frustum of a cone.
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 lady has two silver cups, and only one cover for both. The first cup weighs 16 oz, and when it is covered it weighs 3 times as much as the second cup; but when the second cup is covered, it weighs 4 times as much as the first.
A collection of articles on using the history of mathematics of the past 200 years in the undergraduate classroom.
Information on the NCTM Fall, 2004 Eastern Regional meeting.

How a translation of Peano's counterexample to the 'theorem' that a zero Wronskian implies linear dependence can help your differential equations students

I have two fields of grain. From the first field I harvest 2/3 a bushel of grain/unit area; from the second, 1/2 bushel/unit area.
Two men brought their fish through customs. Find how much the fish cost, and what is the customs fee.
Title page from the Ars Magna, by Gerolamo Cardano, published in 1545. Engraved portrait of the author. First printed text of algebraic solution of cubic equations.
This conference takes place in 2006 at Pennsylvania State University, Erie.