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Convergence articles

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In Archimedes' Book of Lemmas (ca 250), he introduces a figure that, due to its shape, has historically been known as "the shoemaker's knife" or arbelos.
Download the three winning essays to learn about medieval Islamic dust boards, Old Babylonian similarity, and the Fermat Problem.
An old Chinese general led his army to a river with a steep bank. Standing atop the bank, he held a stick 6 feet long perpendicular to himself.
A merchant bought 50,000 pounds of pepper in Portugal for 10,000 scudi and paid a tax of 500 scudi.
A superb collection of articles by experts on various areas of the history of analysis, from the Greeks to modern times.
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.
A castle has n rooms each of which has 7 samurai in it.
One military horse cannot pull a load of 40 dan; neither can 2 ordinary horses, nor can three inferior horses.
A historically minded textbook designed to teach real analysis by considering some of the problems faced by 19th century mathematicians.

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