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Convergence articles

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In the figure at the left, if the radii of each inscribed circle is 1, what are the dimensions of the bounding rectangle?
There is a mound of earth in the shape of a frustum of a cone.
A tree 100 units high is 200 units distant from a well; from this tree one monkey climbs down and goes to the well...
An introduction to the priority dispute between Euler and D'Alembert relating to several mathematical ideas that both worked on in the 1740s and 1750s.
Whimsical posters of fifteen mathematicians with brief biographies.
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Download the three winning essays to learn about Kepler's mathematical astronomy, the roots of modern algebra, and the Quadrivium of Isidore of Seville.
To find three quantities x.y, and z...
The first page of Pathway to Knowledge by Robert Recorde (1510-1558). A version of Euclid's Elements, with commentary by Recorde to make it easier to understand. This page includes Euclid's first three postulates.
Two men brought their fish through customs. Find how much the fish cost, and what is the customs fee.