Re: O.D.E in Power Series
- To: mathgroup at smc.vnet.net
- Subject: [mg18358] Re: O.D.E in Power Series
- From: Harald Giese <giese at dkrz.de>
- Date: Wed, 30 Jun 1999 14:13:25 -0400
- Organization: Institut fuer Meereskunde, Universitaet Hamburg
- References: <7ku0dk$9a1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
ALAN S BLOOM wrote: > > I am trying to solve this equation below: > y''-2(x+3)y'-3y=0 with the DSolve command. > > DSolve [y''[x]-2(x+3)y'[x]-3y[x]==0,y[x],x] > > How can I make it work? > Alan, on Mathematica 3.0 for Solaris and Mathematica 4.0 for Windows it works, if the prime is the character with ASCII code 180 instead of code 39: In[2]:= DSolve[y\.b4\.b4[x] - 2(x + 3)y\.b4[x] - 3y[x] == 0, y[x], x] Out[2]= \!\({{y[x] -> 1\/3\ \((\(-6\)\ y\.b4[x] - 2\ x\ y\.b4[x] + y\.b4\.b4[x])\)}}\) Regards, Harald -- Harald Giese Email: giese at dkrz.de > NEUE TELEFON-NUMMER | NEW PHONE-NUMBER < Phone: +49 (0)40 42838 5796; Fax: +49 (0)40 5605724 Institut fuer Meereskunde der Universitaet Hamburg (Institute of Oceanography of the University of Hamburg) Troplowitzstrasse 7, D-22529 Hamburg