You can download the notebooks in this issue of The Mathematica Journal as a .zip file.

Download TMJ11-2.zip. (13.1 MB)

Once you have unzipped the file, you will have a directory that includes the following notebooks.

• TMJv11i2-contents.nb—Table of Contents
• Corner11-2.nb—Constructing Crossword Arrays Faster by Michael Trott
• CrossingNumberGraphs.nb—Crossing Number Graphs by Ed Pegg Jr and Geoffrey Exoo
• Editors.nb—Editor’s Introduction by Yves Papegay
• Abbott.nb—On the Perimeter of an Ellipse by Paul Abbott
• Barrere.nb—An Algorithmic Approach to Manifolds by Rémi Barrère
• EisenbergPark.nb—Visualizing Complex Functions with the Presentations Application by Murray Eisenberg and David J. M. Park, Jr.
• Erdos.nb—Substitutions and Replacements in Mechanism Prototyping by Gábor Erdos
• Hertel.nb—Computing the Uncomputable Rado Sigma Function by Joachim Hertel
• Johannesen.nb—The Buffon Needle Problem Revisited in a Pedagogical Perspective by Ivar G. Johannesen