Re: The Wave Equation : Mathematica vs. Mathworld
- To: mathgroup at smc.vnet.net
- Subject: [mg47895] Re: [mg47873] The Wave Equation : Mathematica vs. Mathworld
- From: Cheng Liu <cliu at lanl.gov>
- Date: Thu, 29 Apr 2004 19:39:41 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
Because the equation you were trying to solve is not a wave equation! At 01:05 AM 4/29/2004, Gilmar Rodr?guez Pierluissi wrote: >******************************************************************************* >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! =================================== Cheng Liu, Ph.D. MST-8, MS-G755 Los Alamos National Laboratory Los Alamos, NM 87545 email: cliu at lanl.gov Phone: (505)665-6892 (office) (505)667-9950 (lab) Fax: (505)667-8021 ===================================