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Home > Science > Math > Recreations > Specific Numbers > e

e = 2.71828182 It has been called the logarithmic constant, Napier's number, Euler's constant, and the natural logarithmic base. The constant plays a key role in descriptions of phenomena such as radioactive decay and population growth and, in the financial world, and in calculations of compound interest.

Resources in This Category

• e the EXPONENTIAL - the Magic Number of GROWTH

  http://www.austms.org.au/Modules/Exp/
  A text by Keith Tognetti, published as an Australian Mathematical Society Teaching Module. Available in Postscript, PDF or DVI-Format.

• esquared

  http://staff.spd.dcu.ie/johnbcos/esquared.htm
  New Proofs of the irrationality of e^2 and e^4, by John Cosgrave. Maple worksheets and RTF preprint.

• Exponential Review

  http://mste.illinois.edu/malcz/ExpFit/REVIEW.html
  Definition of e and the application of exponentials with nice illustrations.

• The Base for Natural Logarithms

  http://www.cs.arizona.edu/icon/oddsends/e.htm
  computed to over 50.000 digits.

• The Constant e

  http://numbers.computation.free.fr/Constants/E/e.html
  The number e : history, algorithms, computations, references.

• The Scales Of e

  http://members.optusnet.com.au/exponentialist/The_Scales_Of_e.htm
  This article explores the exponential nature of fixed rate and variable rate compound interest through the use of exponentials, natural logarithms and e.

 

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