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Convergence articles

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The Tree of Proportions and Proportionality from the De Divina Proportione of Luca Pacioli published in 1509.
The two final volumes of the MAA tercentenary series on Euler present numerous papers on various aspects of Euler's life and work.
2007 marks the three hundredth anniversary of the birth of Leonhard Euler, the most prolific mathematician of all time. There are numerous events throughout the world celebrating this anniversary, many of which are listed here.
A collection of 24 mini-posters, each containing a quotation about mathematics.
The story of Gerbert, who became Pope Sylvester II in 999, and his mathematics.

Our reviewer praises the selection of excerpts, the use of facsimiles rather than transcriptions, and the commentary and English translation in this collection.

Three congruent circles of radius 6 inches are mutually tangent to one another. Compute the area enclosed between them.
A new history of mathematics text which asks lots of questions about the history and the mathematics.
This is the title page of the Treatise of Algebra (1685), by John Wallis. This is probably the first attempt at a history of the subject of algebra, presented in the context of a text on the subject. Among the most famous parts of this treatise is Wallis's discussion of the work of Thomas Harriot, especially his contention that Rene Descartes plagiarized Harriot's symbolization procedure in algebra.
The purchase price for an apple and an orange is 100 yen. When n oranges and n + 3 apples are bought the price is 520 yen. Find the number n of oranges and the price of one orange.