Re: solve differential equation problem

*To*: mathgroup at smc.vnet.net*Subject*: [mg68981] Re: solve differential equation problem*From*: "elvis" <rapstone at gmail.com>*Date*: Sat, 26 Aug 2006 02:04:10 -0400 (EDT)*References*: <ec97dc$4b3$1@smc.vnet.net><ecbopf$raj$1@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

Thanks a lot for your reply. I've solved it. The reason is before using the letters you shouldn't have define them. Jens-Peer Kuska wrote: > Hi, > > can you explain your problem by an example ? > that is *not* solved by Mathematica *and* > produce the error message below ?? > > Regards > Jens >