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The American Mathematical Monthly Volume 28, 1921 - Issue 6-7
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Questions and Discussions

H. F. MacNeishCollege of the City of New York.
&
Philip FranklinPrinceton University.
Pages 260-262 | Published online: 08 Mar 2018

  • Solutions of some of the cases are indicated in Methods and theories for the solution of problems of geometrical construction, by J. Petersen, Copenhagen, 1879, problems 181, 187, 238, 276, 401, 402, 403.
  • See H. F. MacNeish, School Science and Mathematics, October, 1918, p. 626. Cf. 1921, 36.
  • This length may easily be constructed, since foci and directrices are given.
  • Acta Mathematica, vol. 9, 1887, pp. 131 f.
  • January and February are counted as the 13th and 14th months of the preceding year.

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