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MathGroup Archive 2004

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The Wave Equation : Mathematica vs. Mathworld

  • To: mathgroup at smc.vnet.net
  • Subject: [mg47873] The Wave Equation : Mathematica vs. Mathworld
  • From: gilmar.rodriguez at nwfwmd.state.fl.us (Gilmar Rodr?guez Pierluissi)
  • Date: Thu, 29 Apr 2004 03:05:50 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

*******************************************************************************
I'm attempting to duplicate the analysis found in:

http://mathworld.wolfram.com/WaveEquation.html

about how to derive a solution to the Wave Equation.
I want to get to that solution using Mathematica.
The solution to the Wave Equation is given by Eq(39)
displayed on the above website. 
To see my attempt to solve the Wave Equation using Mathematica v.5,
please double-click the following internet link, and save
this notebook into a directory of your choice:

http://www.tilmarlily.netfirms.com/download/wave.nb

The solution given by Out[2](in the notebook) is very different
from Eq(39).

My question is, why is the solution given by Mathematica so
different than the classical result given by Eq(39)in the Mathworld
website?

Thank you!


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