Here I introduce the R package permutations, for manipulating permutations of a finite set. I show how the package has been used to investigate the megaminx puzzle and exhibit an 82 -turn superflip that represents a new lower bound for this operation. (C) 2020 The Author. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
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St Louis Univ, Dept Earth & Atmospher Sci, St Louis, MO 63103 USA
St Louis Univ, Dept Comp Sci, St Louis, MO USA
Taylor Geospatial Inst, St Louis, MO USASt Louis Univ, Dept Earth & Atmospher Sci, St Louis, MO 63103 USA
Aydin, Orhun
Pavlushko, Dmitry
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Environm Syst Res Inst, Redlands, CA USASt Louis Univ, Dept Earth & Atmospher Sci, St Louis, MO 63103 USA
Pavlushko, Dmitry
Walbridge, Shaun
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Environm Syst Res Inst, Redlands, CA USASt Louis Univ, Dept Earth & Atmospher Sci, St Louis, MO 63103 USA
Walbridge, Shaun
Kopp, Steve
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Environm Syst Res Inst, Redlands, CA USASt Louis Univ, Dept Earth & Atmospher Sci, St Louis, MO 63103 USA
Kopp, Steve
V. Janikas, Mark
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机构:St Louis Univ, Dept Earth & Atmospher Sci, St Louis, MO 63103 USA