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Convergence articles

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In this article which won the 2005 prize of HOMSIGMAA, the author discusses Eratosthenes' argument to determine the size of the earth as well as possibilities for the size which Eratosthenes found (in modern measures).
The Fundamental Theorem of Calculus is presented in the version of Scottish mathematician James Gregory -- without the use of limits.

Images of the first printed edition of Euclid's Elements

A history of the various algebraic structures that came together to give us "abstract algebra" by early in the twentieth century.
A man went to a draper and bought a length of cloth 35 braccia long to make a suit of clothes.
A small selection of Euler's works, explained by a master expositor.
A discussion of why we use "e" to represent the base of the natural logarithm system.
There is a log 18 feet long, the diameter of the extremities being 1 ft and 2.6 ft respectively...
The cost per hour of running a certain steamboat is proportional to the cube of its velocity in still water. At what speed should it be run to make a trip up stream against a four-mile current most economically?
If an arc of 45 degrees on one circumference is equal to an arc of 60 degrees on another circle, what is the ratio of the areas of the circle?

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