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Convergence articles

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A superb collection of articles by experts on various areas of the history of analysis, from the Greeks to modern times.
The work of ten scientists who thought deeply about patterns.
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.

Images of the first printed edition of Euclid's Elements

A portrait gallery of mathematicians, mostly taken from the collection at the Dibner Library of the Smithsonian, with permission.
A discussion of why we use "e" to represent the base of the natural logarithm system.
A gentleman has bought a rectangular piece of land whose perimeter is to be 100 rods; and he is to pay 1 dollar for each rod in the length of the land and 3 dollars for each rod in the breath of the land.
The square of a certain number multiplied by itself and by 200 is 446,976. What is the number?
The authors makes the case for Leonardo da Vinci as the first modern scientist, as he discussed Leonardo's mathematics and science.
Find two numbers, x and y, such that their sum is 10 and x/y + y/x = 25

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