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Convergence articles

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Curve sketching, tangent lines, and optimization, explored via interactive applets

Find two number with sum 20 and when squared their sum is 208.
A description of this well-regarded website.
If an equilateral triangle whose area is equal to 10,000 square feet be surrounded by a walk of uniform width, and equal to the area of the inscribed circle, what is the width of the walk?
Archimedes' work, The Method, explained, along with many other important ideas of the great Greek geometer.
How Servois' failed attempt to construct a foundation for the calculus nonetheless helped shape modern mathematics
Benjamin Banneker solved some trigonometry problems in his extant notebooks. One of them is discussed here. The authors have also discovered the probable source of Banneker's trigonometry table.
This is the title page to the English version of Isaac Barrow's Geometrical Lectures, which were originally given in his position as Lucasian Professor of Mathematics at Cambridge University. These lectures contain one of the earliest statements and proofs of what is today known as the fundamental theorem of calculus.
A collection of articles on mathematics in Europe from the twelfth to the fifteenth century.
In many sources, we see that Tartaglia has the surname Fontana. According to the author of this article, the co-discoverer of the cubic formula did not ever use that name.

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