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Convergence articles

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A brief version of the author's well-known history of mathematics text.
A study of Mullikan's Nautilus, using movies to illustrate the important ideas
A four-sided town measures 1100 feet on one side and 1000 feet on the other side, on one edge 600 and the other edge 600.
This is the title page of the Nova Scientia (1537) of Niccolo Tartaglia (1499-1557). In this work, Tartaglia discussed the mathematics of artillery and developed methods for determining the range of a cannon.

A history of the concept of zero from as far back as the Babylonian period, with philosophical excursions into the meaning of "nothing".

Three hundred pigs are to be prepared for a feast.
What is the sum of the following series, carried to infinity: 11, 11/7, 11/49, etc.?
NCTM Meeting in Philadelphia
The history of the Poincare conjecture up to its recent proof by Grigori Perelman.
A sketch of the history of topology, beginning with the polyhedron formula, but continuing up to the present.