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Convergence articles

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A collection of sixteen posters of contributors to calculus, with brief biographical sketches.
In the figure at the left, if the radii of each inscribed circle is 1, what are the dimensions of the bounding rectangle?
Videotape of aspects of the history of mathematics.
What is the perpendicular height of a cloud when its angles of elevation were 35 degrees and 64 degrees as taken by two observers at the same time...
A highly recommended new book on the history and applications of pi.
There is a number which when divided by 2, or 3, or 4, or 5, or 6 always has a remainder of 1 and is truly divisible by 7. It is sought what is the number?
Download the three winning essays to learn about Kepler's mathematical astronomy, the roots of modern algebra, and the Quadrivium of Isidore of Seville.
A dramatization, in two Acts, of the struggles of European mathematicians of the seventeenth and eighteenth centuries to come to terms with the newly admitted negative numbers.
A discussion of aspects of Leonardo of Pisa's Book of Squares.
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.