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Convergence articles

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There is a right triangle where: the sum of the upright multiplied by itself twice and the hypotenuse multiplied by itself is 700 units; and, the sum of the base multiplied by itself twice and the hypotenuse multiplied by itself is 900 units.
Given: a circle with an inscribed equilateral triangle. The triangle has an area of 12 square units. What is the area of the circle?
A collection of short pieces detailing how Euler solved a particular mathematics problem.
A gallery of episodes from the history of calculus.
Tartaglia's method for solving cubics, which he eventually explained to Cardano.
Paul Halmos Photograph Collection, page 3: M. Auslander, R. Baer, Banchoff, C. N. Moore, I. A. Barnett, P. Erdos, and Lida Barrett
This is the title page of the French edition of Leonhard Euler's text on Algebra. The text was originally published in German in 1767 in St. Petersburg and then translated into French in 1795.
A cultural history of the infinite, from ancient to modern times, in which the author clarifies the conceptual underpinnings of this vast topic.
Given a guest on horseback rides 300 li in a day. The guest leaves his clothes behind. The host discovers them after 1/3 day, and he starts out with the clothes.
Four episodes in the history of geometry are discussed, where dynamic geometry helps in understanding the ideas.