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Convergence articles

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A merchant bought 50,000 pounds of pepper in Portugal for 10,000 scudi and paid a tax of 500 scudi.
Three congruent circles of radius 6 inches are mutually tangent to one another. Compute the area enclosed between them.
A history of the various algebraic structures that came together to give us "abstract algebra" by early in the twentieth century.
Knowing the base, b, and the altitude, a, of a triangle. Find the expression for a side of the inscribed square.
There is a log 18 feet long, the diameter of the extremities being 1 ft and 2.6 ft respectively...
Website containing much information on mathematical symbolism and terminology, as well as portraits of mathematicians from postage stamps.

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

Mathematics is often referred to today as the "science of patterns." But has this always been true historically, or is this something that happened in recent times? The question is discussed here with reference to the work of Euclid and Jacob Steiner.
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 horse, halving its speed each day, travels 700 miles in 7 days. How far does it travel each day?