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The College Mathematics Journal is designed to enhance classroom learning and stimulate thinking regarding undergraduate mathematics. CMJ publishes articles, short Classroom Capsules, problems, solutions, media reviews and other pieces. All are aimed at the college mathematics curriculum with emphasis on topics taught in the first two years.

Publisher: Mathematical Association of America

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Volume 41, Number 5, November 2010

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Free Content Front Matter
pp. i-iii(3)

The Tower and Glass Marbles Problem
pp. 350-356(7)
Authors: Denman, Richard T.; Hailey, David; Rothenberg, Michael

A Pumping Lemma for Invalid Reductions of Fractions
pp. 357-364(8)
Authors: Fried, Michael N.; Goldberg, Mayer

Cubic Polynomials with Rational Roots and Critical Points
pp. 365-369(5)
Authors: Gupta, Shiv K.; Szymanski, Waclaw

Proof Without Words: New Pythagorean-like Theorems
pp. 370-370(1)
Authors: Alsina, Claudi; Nelsen, Roger B.

Sprinkler Bifurcations and Stability
pp. 383-391(9)
Authors: Sorensen, Jody; Rykken, Elyn

Proof Without Words: Double Sum for Sine and Cosine
pp. 392-392(1)
Author: Unal, Hasan

The Rascal Triangle
pp. 393-395(3)
Authors: Anggoro, Alif; Liu, Eddy; Tulloch, Angus

Graphs and Zero-Divisors
pp. 396-399(4)
Authors: Axtell, M.; Stickles, J.

On a Perplexing Polynomial Puzzle
pp. 400-403(4)
Author: Richmond, Bettina

Sum-Difference Numbers
pp. 404-405(2)
Author: Shi, Yixun

Animating Nested Taylor Polynomials to Approximate a Function
pp. 405-408(4)
Authors: Mazzone, Eric F.; Piper, Bruce R.

Problems and Solutions
pp. 409-415(7)

Media Highlights
pp. 419-427(9)

Referees in 2010
pp. 428-429(2)

Free Content Back Matter
pp. iv-x(7)

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