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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

Amazing Traces of a Babylonian Origin in Greek Mathematics

Aspects of classical Greek mathematics are compared with areas of Babylonian mathematics.

Ancient Mathematics

A new history of Greek mathematics, taking into account the latest research.

Gun Metal

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?

Review of The Man of Numbers: Fibonacci's Arithmetic Revolution

Author Keith Devlin argues that the impact of the Pisan merchant and his Arabic numbers on medieval Europe was even greater than previously thought.

When Least is Best

A survey of techniques of minimizing and maximizing over the centuries.

Adam Riese's Rechenbuch

This is a page from the Rechenbuch of Adam Riese. It deals with the measurement of barrels. Also a page that has a table showing numbers both in German words, in Roman numerals, and in the Hindu-Arabic numerals.

Consortium's Historical Notes

Collection of historical articles that appeared in Consortium, the newsletter of COMAP.