Re: Help with differential equation
- To: mathgroup at smc.vnet.net
- Subject: [mg112248] Re: Help with differential equation
- From: "Kevin J. McCann" <kjm at KevinMcCann.com>
- Date: Mon, 6 Sep 2010 06:36:35 -0400 (EDT)
- References: <i627tc$b9$1@smc.vnet.net>
I am sure will get a number of replies, but the correct functional call for cosine is: Cos[y] not cos[y]. Kevin mathpavi wrote: > 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 >