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Convergence articles

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Whimsical posters of fifteen mathematicians with brief biographies.

Three circles of varying radius are mutually tangent. The area of the triangle connecting their centers is given. Find the radius of the third circle.

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Videotape of aspects of the history of mathematics.

A horse halving its speed every day runs 700 miles in 7 days.

A biography of Gauss designed for high school students.

Images from a 16th-century text about the astrolabe and its uses

A CD with eleven modules, each containing numerous activities designed to help secondary teachers use the history of mathematics to teach mathematics.

A discussion of why we use "e" to represent the base of the natural logarithm system.

A dramatization, in two Acts, of the struggles of European mathematicians of the seventeenth and eighteenth centuries to come to terms with the newly admitted negative numbers.

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