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A creative expression combining text, design and illustrations, originally designed for the International Congress of Mathematicians in Madrid.

A square walled city measures 10 li on each side. At the center of each side is a gate. Two persons start walking from the center of the city.

Suppose a man had put out one cent at compound interest in 1620, what would have been the amount in 1824, allowing it to double once in 12 years?

An excellent and careful study of matrix methods for solving systems of linear equations in first century China.

How many calves, goats and pigs did the farmer buy?

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.

Convergence Advisory Board 2004-2009

Aspects of classical Greek mathematics are compared with areas of Babylonian mathematics.
A new history of Greek mathematics, taking into account the latest research.

Gun metal of a certain grade is composed of 16% tin and 84% copper. How much tin must be added to 410 pounds of this gun metal to make a composition of 18% tin?

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