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Re: Help with differential equation

  • To: mathgroup at smc.vnet.net
  • Subject: [mg112246] Re: Help with differential equation
  • From: Raul Martinez <raulmart at mac.com>
  • Date: Mon, 6 Sep 2010 06:36:13 -0400 (EDT)
  • References: <201009060814.EAA00386@smc.vnet.net>

You need cos[y[x]].

Raul Martinez
On Sep 6, 2010, at 1:14 AM, 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
> 



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