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Convergence articles

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A collection of short biographical sketches of people involved in the development of calculus, as well as brief descriptions of important events in that development.
Arithmos seminars are 24-hour workshops on the classics of mathematics, read in the original, or in a scholarly English translation.
Two men start walking at the same time and travel a distance. One is walking faster and completes the journey sooner. How fast did each man travel?

Images from Frans van Schooten's 1659 edition of The Geometry of Rene Descartes

A father left $20,000 to be divided among his four sons ages 6, 8, 10, and 12 years respectively so that each share placed at 4 1/2 compounded interest should amount to the same value when its possessor becomes the age 21.
The dimensions of a rectangular box in inches are expressed by three consecutive numbers. The surface of the box is 292 square inches. Find the dimensions.
Determine the greatest cylinder that can be inscribed in a given cone.
The sum of the two digits of a 2-digit number is 9. If 45 is subtracted from the number, the result will be expressed by the digits in reverse order. Find the number.
Essays on various aspects of mathematical thought by prominent mathematicians of the past century.
There are two piles, one containing 9 gold coins, the other 11 silver coins.