Re: Help with differential equation
- To: mathgroup at smc.vnet.net
- Subject: [mg112264] Re: Help with differential equation
- From: Peter Pein <petsie at dordos.net>
- Date: Tue, 7 Sep 2010 02:02:01 -0400 (EDT)
- References: <i627tc$b9$1@smc.vnet.net>
Am Mon, 6 Sep 2010 08:14:36 +0000 (UTC) schrieb mathpavi <elvisgraceland at gmail.com>: > Dear experts, > I tried solving the following differential equation using DSolve: > > y' ' [x]+a( y' [x] ) = b( cos[y] ) > > But I got error message which asked me to provide proper arguments for > cos.. > So I changed cos[y] to cos[kx] and obtained solution... > However, I have to solve the equation by keeping cos[y] in order to > obtain a solution of relevance to my work. > Please help. > praveen > combine the answers from Raul and Kevin and type: Cos[y[x]] Peter