A general mathematics website with much information on the history of mathematics.

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A general mathematics website with much information on the history of mathematics.

A square walled city of unknown dimensions has four gates, one at the center of each side.

A superb collection of articles by experts on various areas of the history of analysis, from the Greeks to modern times.

If 80 dollars worth of provisions will serve 20 men for 25 days, what number of men will the same amount of provisions serve for 10 days?

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

Where does pi come from? Why should we be interested in negative numbers, or square roots of negative numbers? How did people ever figure out the quadratic formula? A truly wonderful reference for teachers at all levels.

Essays on various aspects of Greek science and mathematics, which help give a context for those aspects of Greek culture.

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.

A new collection of original source materials in the mathematics of five civilizations.

A seminar of faculty from colleges and universities in the Philadelphia area, meeting monthly at Villanova University.