There are two columns in the ruins of Persepolis left standing upright; one is 70 ft. above the plane, and the other 50 ft;

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

X, Y and Z hired a pasture for the season for $90.00. Each has a different number of mules and are on the pasture for a different number of days. How much is each to pay?

Convergence Advisory Board 2004-2009

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

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.

If a ball 6 inches in diameter weighs 32 lbs, what will be the weight of a ball 3 inches in diameter?

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

A discussion not only of the mathematics of pi, but of its applications through the centuries.