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Convergence articles

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In order to encourage his son in the study of arithmetic, a father agrees to pay him 8 pennies for every problem solved correctly and to charge him 5 pennies for each incorrect solution.
A study of Mullikan's Nautilus, using movies to illustrate the important ideas
A four-sided town measures 1100 feet on one side and 1000 feet on the other side, on one edge 600 and the other edge 600.
Three hundred pigs are to be prepared for a feast.
What is the sum of the following series, carried to infinity: 11, 11/7, 11/49, etc.?
A set of four posters dealing with the Pythagorean Theorem, infinity, prime numbers, and the history of pi.
An extension of Al-Karaji's formula for the sum of the cubes by a 19th century Turkish author and journal editor
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.
The earliest known example of a printed book on arithmetic, dates to 1478. Also known as the Art of Calculation.
The history of the Poincare conjecture up to its recent proof by Grigori Perelman.

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