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Title page from the Ars Magna, by Gerolamo Cardano, published in 1545. Engraved portrait of the author. First printed text of algebraic solution of cubic equations.
A new collection of original source materials in the mathematics of five civilizations.
One says that 10 garments were purchased by two men at a price of 72 dirhams. The garments varied in value. The price of each garment of one man is 3 dirhams more than the price for each garment of the other. How many garments did each man buy?
A seminar of faculty from colleges and universities in the Philadelphia area, meeting monthly at Villanova University.
A brief introduction to the life of John Napier, along with an animation of calculations using Napier's bones.
Page 7, Who's That Mathematician: Images from the Paul R. Halmos Photograph Collection: Blackwell, Halmos, Boas, Bollobas, Bombieri, Mumford, Bonsall, Rankin
A delightful survey of the history of trigonometry, along with discussions of its uses, both ancient and modern.
There is a tree with 100 branches. How many nests, eggs and birds are there?
This is a page from the Rechenbuch of Adam Riese. It deals with the measurement of barrels. Also a page that has a table showing numbers both in German words, in Roman numerals, and in the Hindu-Arabic numerals.
The perimeters of two similar triangles are 45 and 135 respectively. One side of the first triangle has length 11″ and a second side, 19″. Find the lengths of the sides of the second triangle.

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