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Convergence articles

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Explain the geometric basis of "completing the square," the original method of solving quadratic equations, to your students.
A survey of early theories of planetary motion, with dynamic figures to help in understanding these motions.
Problems taken from Chinese sources
A collection of articles on mathematics in Europe from the twelfth to the fifteenth century.
In many sources, we see that Tartaglia has the surname Fontana. According to the author of this article, the co-discoverer of the cubic formula did not ever use that name.
A wonderful book about the square root of 2, beginning with the search for the side of a square double a given square.
Page 4: Images of Jose Barria, Paul Halmos, Robert Bartle, Marshall Stone, Hyman Bass, and Joseph Bastian from the Halmos snapshot collection
A general formed his men into a square, that is, an equal number in rank and file, and he found that he had an excess of 59 men.
A collection of articles about historical and contemporary women in mathematics.
This is the title page of the 1599 edition of the Rechenbuch of Simon Jacob (d. 1564), a Rechenmeister of the sixteenth century. This was a commercial arithmetic text, in which the basic laws of arithmetic were applied to many practical problems.

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