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Convergence articles

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A collection of short pieces detailing how Euler solved a particular mathematics problem.
The authors provide descriptions of Maya calendar systems, photos of artifacts, examples of calendar conversions, and exercises for classroom use.
Tartaglia's method for solving cubics, which he eventually explained to Cardano.
Poster of Banneker, with a brief description of his life and work.
A discussion of a collaborative effort in Italy to produce materials enabling secondary school teachers to use the history of mathematics in the classroom.
Given four integers where if added together three at a time their sums are: 20, 22, 24, and 27. What are the integers?

As is the case with a great deal of interesting mathematics, the conic sections are believed to have been discovered in an attempt to solve a problem, a problem which on the surface seems to have nothing to do with conic sections.

A square circumscribed about a given circle is double in area to a square inscribed in the same circle. True of false? Prove your answer.
Four episodes in the history of geometry are discussed, where dynamic geometry helps in understanding the ideas.
Paul Halmos Photograph Collection, page 2: Arveson, Aschbacher, Askey, Lininger, Atiyah, Doob