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**Stanley Wagon** is a Canadian-American mathematician, a professor emeritus of mathematics at Macalester College in Minnesota. He is the author of multiple books on number theory, geometry, and computational mathematics, and is also known for his snow sculpture.

Wagon was born in Montreal, to Sam and Diana (Idlovitch) Wagon.^{[1]} His sister Lila (Wagon) Hope-Simpson died in 2021.^{[2]} Wagon did his undergraduate studies at McGill University in Montreal, graduating in 1971. He earned his Ph.D. in 1975 from Dartmouth College, under the supervision of James Earl Baumgartner. He married mathematician Joan Hutchinson, and the two of them shared a single faculty position at Smith College and again at Macalester, where they moved in 1990.^{[3]}^{[4]}^{[5]}

*The Banach–Tarski Paradox*(Cambridge University Press, 1985)^{[6]}*Old and New Unsolved Problems in Plane Geometry and Number Theory*(with Victor Klee, Mathematical Association of America, 1991)^{[7]}*Mathematica® in Action: Problem Solving Through Visualization and Computation*(W.H. Freeman, 1991; 2nd ed., Springer, 1999; 3rd ed., Springer, 2010)*Animating Calculus*(with E. Packel, TELOS, 1996)*Which Way Did the Bicycle Go?*(with J. D. E. Konhauser and D. Velleman, Mathematical Association of America, 1996)*VisualDSolve: Visualizing Differential Equations with Mathematica*(with Dan Schwalbe, TELOS, 1997; 2nd ed., with Schwalbe and Antonin Slavik, Wolfram Research, 2009).*A Course in Computational Number Theory*(with David Bressoud, Springer, 2000)*The Mathematical Explorer*(Wolfram Research, Inc., 2001)*The SIAM 100-Digit Challenge: A Study in High-Accuracy Numerical Computing*(with Laurie, Bornemann, and Waldvogel, SIAM, 2004)^{[8]}

Wagon is also known for riding a bicycle with square wheels,^{[9]}^{[10]} for his mathematical snow sculptures,^{[11]}^{[12]}^{[13]}^{[14]}^{[15]}^{[16]}
and for having given the name to the 420 Arch, a natural stone arch in southern Utah.^{[17]}

Wagon won the Lester R. Ford Award of the Mathematical Association of America for his 1988 paper, "Fourteen Proofs of a Result about Tiling a Rectangle".^{[18]} Wagon and his co-authors Ellen Gethner and Brian Wick won the Chauvenet Prize for mathematical exposition in 2002 for their 1998 paper, "A Stroll through the Gaussian Primes".^{[19]}^{[20]}

**^**"Remembering the life of Diana Wagon".*Montreal Gazette*. 2006-05-09. Retrieved 2022-10-11.**^**Lila Hope-Simpson,"Obituary Lila Hope-Simpson",*The Atlantic Jewish Council*, April 4,2021. Retrieved 2010-01-21.**^**Stanley Wagon at the Mathematics Genealogy Project**^**Selected works of Stan Wagon Archived 2010-09-28 at the Wayback Machine, Berkeley Electronic Press, retrieved 2012-03-10.**^**Invited speaker biography, Simon Fraser University, retrieved 2012-03-10.**^**Mycielski, Jan (August–September 1987), "Review:*The Banach-Tarski Paradox*, by Stan Wagon",*American Mathematical Monthly*,**94**(7): 698–700, doi:10.2307/2322243, JSTOR 2322243.**^**Halmos, P. R. (November 1992), "Review:*Old and New Unsolved Problems in Plane Geometry and Number Theory*, by Victor Klee and Stan Wagon",*American Mathematical Monthly*,**99**(9): 885–889, doi:10.2307/2324140, JSTOR 2324140.**^**Bailey, David (2005), "Review:*The SIAM 100-Digit Challenge: A study in high-accuracy numerical computing*, by Folkmar Bornemann, Dirk Laurie, Stan Wagon, and Jörg Waldvogel",*Bulletin of the American Mathematical Society*,**42**(4): 545–548, doi:10.1090/s0273-0979-05-01066-9**^**Petersen, Ivars (April 5, 2004), "Riding on Square Wheels",*MathTrek*, Mathematical Association of America.**^**"It's hip to be square",*Lawrence Journal-World*, April 17, 1998.**^**Graham, Judith (February 8, 2000), "World Warms Up To Snow Sculpting: Teams Find It Cool To Create Art With Back-Breaking Work In Frigid Temperatures",*Chicago Tribune*.**^**Petersen, Ivars (February 18, 2002), "A Snowy Twist",*MathTrek*, Mathematical Association of America**^**Stebbins, Jane (January 30, 2004), "Snow sculptures take shape as deadline nears",*Summit Daily News*.**^**Tang-Quan, Sharon (March 16, 2005), "Snow Moebius Strip: Doing the Twist",*Daily Californian*, archived from the original on July 8, 2012, retrieved March 10, 2012.**^***Geometry in the Snow*, Mathematical Association of America, January 31, 2008.**^**Petersen, Ivars (December 26, 2009), "White Narcissus",*ScienceNews*.**^**Webb, Shasta (July 25, 2011) [September 25, 2009], "Smokin' arches: marijuana and the math professor",*The Mac Weekly*, archived from the original on September 12, 2012, retrieved March 10, 2012.**^**MAA Writing Awards: Fourteen Proofs of a Result about Tiling a Rectangle, retrieved 2012-03-10.**^**Chauvenet Prize, MAA, retrieved 2012-03-10.**^**Gethner, Ellen; Wagon, Stan; Wick, Brian (1998). "A Stroll Through the Gaussian Primes".*The American Mathematical Monthly*.**105**(4). Taylor & Francis: 327–337. doi:10.1080/00029890.1998.12004889. ISSN 0002-9890.

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