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Math Horizons Contents—February 2015

I hope you enjoy this first issue of the MAA's 100th year. Joshua Bowman writes about how the simple geometric properties of billiards can yield deep mathematics, and he describes the contributions of two of the 2014 Fields medalists. We love that the Fibonacci numbers show up in pineapple spirals, but Burkard Polster and Marty Ross ask: Is it true? Former Math Horizons editor Jennifer Quinn writes about a mathematical battle between counting and matching, and you can choose the winner. Read the article and vote (poll closes on March 21)! —David Richeson, editor

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Articles

The Way the Billiard Ball Bounces

Joshua Bowman

Trumpet Curve

Thomas Dence

5 Epic Math Battles: Counting vs. Matching

Jennifer J. Quinn

Dinosaurs Dig Paleontologists Who Do Math

Susan D'Agostino

12 Drawing Logical Conclusions

Deborah Bennett

DO THE MATH! Fibonacci or Fairy Tale?

Burkard Polster and Marty Ross

Pi Instant

Jeffrey Rosenthal

Poem: A Mathematician's Villanelle

Gizem Karaali

THE BOOKSHELF

Jim Wiseman reviews How Not to Be Wrong: The Power of Mathematical Thinking; Jordan Ellenberg; Ximena Catepillán and Antonia Cardwell review 101 Careers in Mathematics, by Andrew Sterrett

Letters to Joel

David J. Stucki and Joel M. Stucki

THE PLAYGROUND

The Math Horizons problem section, edited by Gary Gordon

AFTERMATH: I Love Math and I Hate the Fields Medal

Cathy O'Neil

Dummy View - NOT TO BE DELETED