Zig-Zag Paths and Neusis Constructions of a Heptagon and a Nonagon

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Notes on contributors

Dan Lawson

Dan Lawson ([email protected]) received his MS in mathematics from San Jose State University in 1994. He teaches at Merritt College in Oakland, CA. He enjoys working on problems in recreational mathematics, including solving and creating sudoku puzzles.

David Richeson

David Richeson ([email protected]) is a professor of Mathematics and the John J. and Ann Curley Chair in Liberal Arts at Dickinson College. He is the author of Tales of Impossibility (Princeton University Press, 2019) and Euler’s Gem (Princeton University Press, 2008), and he is a past editor of Math Horizons.