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Convergence articles

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A discussion of why we use "e" to represent the base of the natural logarithm system.
A collection of 24 mini-posters, each containing a quotation about mathematics.
A set of four congruent circles whose centers form a square is inscribed in a right triangle ABC where C is the right angle and serves as one corner of the square. Find their radius in terms of the sides; a,b,c, of the triangle.
Three congruent circles of radius 6 inches are mutually tangent to one another. Compute the area enclosed between them.
The annual meeting of the NCTM contains numerous sessions dealing with the history of mathematics.
The first detailed biography of James Joseph Sylvester.
The highest point of the Andes is about 4 miles above sea level.
After completing this assignment on Simon Stevin's treatment of decimal fractions in his 1585 De Thiende, the author's preservice mathematics teachers understood why our usual procedure for multiplying such fractions works.
Mathematics is often referred to today as the "science of patterns." But has this always been true historically, or is this something that happened in recent times? The question is discussed here with reference to the work of Euclid and Jacob Steiner.
Suppose a man had put out one cent at compound interest in 1620, what would have been the amount in 1824, allowing it to double once in 12 years?

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