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ExpIPi.gif (360 × 323 pixels, file size: 11 KB, MIME type: image/gif, looped, 9 frames, 4.5 s)

Summary

Description This is a demonstration that Exp(i*Pi)=-1 (called Euler's formula, or Euler's identity). It uses the formula (1+z/N)^N --> Exp(z) (as N increases). The Nth power is displayed as a repeated multiplication in the complex plane. As N increases, you can see that the final result (the last point) approaches -1, the actual value of Exp(i*pi).
Date
Source Own work
 
This diagram was created with Mathematica by n.
Author Sbyrnes321

Licensing

Public domain I, the copyright holder of this work, release this work into the public domain. This applies worldwide.
In some countries this may not be legally possible; if so:
I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law. 
(* Source code written in Mathematica 6.0, by Steve Byrnes, 2008. I release this code into the public domain. *)

plot1 = Table[
  ListPlot[Table[{Re[(1 + (\[ImaginaryI] \[Pi])/n)^m], 
     Im[(1 + (\[ImaginaryI] \[Pi])/n)^m]}, {m, 0, n}], 
   PlotJoined -> True, PlotMarkers -> Automatic, 
   PlotRange -> {{-2.5, 1.1}, {0, \[Pi] + .05}}, AxesOrigin -> {0, 0},
    AxesLabel -> {"Real part", "Imaginary part"}, 
   PlotLabel -> "N = " <> ToString[n], 
   AspectRatio -> Automatic], {n, {1, 2, 3, 4, 5, 10, 20, 50, 100}}];

Export["ExpIPi.gif", plot1, "DisplayDurations" -> {2}, 
 "AnimationRepititions" -> Infinity ]

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inception

5 May 2008

File history

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Date/TimeThumbnailDimensionsUserComment
current19:46, 25 March 2010Thumbnail for version as of 19:46, 25 March 2010360 × 323 (11 KB)Aiyizooptimized animation, converted to 16 color mode
17:19, 5 May 2008Thumbnail for version as of 17:19, 5 May 2008360 × 323 (20 KB)Sbyrnes321{{Information |Description=This is a demonstration that Exp(I*Pi)=-1 (called Euler's formula, or Euler's identity). It uses the formula (1+z/N)^N --> Exp(z) (as N increases). The Nth power is displayed as a repeated multiplication in the complex plane. As
16:58, 5 May 2008Thumbnail for version as of 16:58, 5 May 2008360 × 308 (18 KB)Sbyrnes321{{Information |Description=This is a demonstration that Exp(I*Pi)=-1 (called Euler's formula, or Euler's identity). It uses the formula (1+z/N)^N --> Exp(z) (as N increases). The Nth power is displayed as a repeated multiplication in the complex plane. As

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