Pellonometry

  • Thomas Koshy
Chapter

Abstract

A number of properties bridge the Pell family with trigonometry. To study them, we will frequently need to rely on an important formula in trigonometry, Euler’s formula: \(e^{ix} =\cos x + i\sin x\), where x is any real number and \(i = \sqrt{-1}\).

Keywords

Derrick 

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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • Thomas Koshy
    • 1
  1. 1.Framingham State UniversityFraminghamUSA

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