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Convergence articles

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Now there are three sisters who leave home together.
Explain the geometric basis of "completing the square," the original method of solving quadratic equations, to your students.
A set of four posters dealing with the Pythagorean Theorem, infinity, prime numbers, and the history of pi.
A reprint of the 32nd yearbook of the NCTM, dealing with developments in mathematics education in the U.S. and Canada. In particular, it gives a history of the various reform movements up to the publication date of 1980.
History of Maya calendars, including the modified base 20 number system used in them
A history of the various algebraic structures that came together to give us "abstract algebra" by early in the twentieth century.
A wonderful book about the square root of 2, beginning with the search for the side of a square double a given square.
This is from a letter of June, 1695 in which Leibniz is discussing differentiation with Johann Bernoulli. The work in which these letters appear is the Virorum Celeberr. Got. Gul. Leibnitii et Johann Bernoulli Commercium Philosophicum et Mathematica, originally published in 1740.
There is a log 18 feet long, the diameter of the extremities being 1 ft and 2.6 ft respectively...
A collection of articles about historical and contemporary women in mathematics.