The Shoelace Book: A Mathematical Guide to the Best (and Worst) Ways to Lace Your ShoesAmerican Mathematical Soc., 2006/05/23 - 125 ページ Crisscross, zigzag, bowtie, devil, angel, or star: which are the longest, the shortest, the strongest, and the weakest lacings? Pondering the mathematics of shoelaces, the author paints a picture of the simple, beautiful, and surprising characterisations of the most common shoelace patterns. |