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The American Mathematical Monthly Volume 121, 2014 - Issue 3
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NOTES

A Short Proof of McDougall's Circle Theorem

Marc ChamberlandDepartment of Mathematics and Statistics, Grinnell College, Grinnell, [email protected]
&
Doron ZeilbergerDepartment of Mathematics, Rutgers University (New Brunswick), Piscataway, [email protected]
Pages 263-265 | Published online: 13 Dec 2017

REFERENCES

  • R. Askey, Completing Brahmagupta's extension of Ptolemy's theorem, in The legacy of Alladi Ramakr- ishnan in the mathematical sciences. Edited by Krishnaswami Alladi, John R. Klauder and Calyampudi R. Rao, Springer, New York, 2010.
  • J. McDougall, Private communication, 2012.
  • J. McDougall, Harmonic mappings with quadrilateral image, in Complex Analysis and Potential Theory. American Mathematical Society, Providence, RI, 2012. 99–115.

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