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Dozenal Society of America
Promoting base twelve and alternative base mathematics
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The Dozenal Society of America
The DSA is a voluntary, nonprofit education corporation, organized for the conduct of research and education of the public in the use of dozenal (also called duodecimal or base-twelve) in calculations, mathematics, weights and measures, and other branches of pure and applied science.

The Duodecimal Bulletin

◀️ Issue: Whole Number 53z (63d) | Vol. 2Bz (35d) No. 1 | Year 1196z (1986d) ▶️



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Editor: Dr. Patricia Zirkel

Cover Title: DSA Members Honored

Contents:

  • Minutes of Annual Meeting of 1985 (1195;)
    • Business Meeting
      • President’s Report | Prof. Gene Zirkel
      • Treasurer’s Report | Prof. James Malone
      • Editor’s Report | Patricia Zirkel
      • Annual Meeting Committee | Antony Catania
      • Financial Committee | Dr. Angelo Scordato
      • Nominating Committee | Alice Berridge, Antony Catania, & Bob Foley
    • Board of Directors Meeting
    • Luncheon
    • Afternoon Presentations
      • James Malone | “Eggsactly a Dozen”
      • Fred Newhall | “The Accuracy Scale”
      • Walter Berkmann | “A Dozenal Abacus/Calculator”
      • Dudley George | “Dozenals in Measurement”
      • Gene Zirkel | “Symbol Summation”
    • Evening Banquet
  • Strange Bases (Part III) | Gene Zirkel
    • Algebraic Irrational Numbers
    • Transcendental Bases
    • Imaginary Bases
    • Conclusion
  • Duodecimal Logarithms | Eugene Scifres
  • A Simpler Conversion Notation
  • Dozenal Jottings
    • Igor Valevsky | letter for Tom O’Neill | Esperanto conference in Brazil
    • Roan Orloff Stone | Bahaa Esperanto-Ligo
    • Jerry Brost | preparing article for Bulletin
    • Paul Rapoport | working on a dozenal clock | suggestions from Bill Schumacher
    • Gene Zirkel | back has recovered
    • Skip Scifres | outlined computer capabilities
    • Tom Pendlebury | proud of honorary membership
    • Joe Cappe
    • Joseph P. Celko
    • Arthur Whillock
  • Recent Library Acquisitions
  • Counting in Dozens