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Re: Is this so hard?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg95298] Re: Is this so hard?
  • From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
  • Date: Wed, 14 Jan 2009 05:56:00 -0500 (EST)
  • References: <gkgpb7$40d$1@smc.vnet.net>

Hi,

from

sol = DSolve[x''[t] == 1/x[t]^2, x, t]

one can see, that DSolve[] end up with an implict
function that can't be extracted and so
it can't find a solution that fulfill the initial
conditions.

Regards
   Jens

cool-RR wrote:
> Hey all,
> 
> I gave DSolve this thing:
> 
> DSolve[{x''[t] == 1/x[t]^2, x[0] == -1}, x, t]
> 
> It made it think and think until it crashed.
> Is this DE so hard? I figured it was something basic.
> 
> Thanks,
> Ram.
> 


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