Re: Is this so hard?
- To: mathgroup at smc.vnet.net
- Subject: [mg95255] Re: [mg95227] Is this so hard?
- From: Murray Eisenberg <murray at math.umass.edu>
- Date: Mon, 12 Jan 2009 06:26:33 -0500 (EST)
- Organization: Mathematics & Statistics, Univ. of Mass./Amherst
- References: <200901111138.GAA12346@smc.vnet.net>
- Reply-to: murray at math.umass.edu
You didn't want another initial (or boundary) condition for this 2nd
order ODE?
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.
>
--
Murray Eisenberg murray at math.umass.edu
Mathematics & Statistics Dept.
Lederle Graduate Research Tower phone 413 549-1020 (H)
University of Massachusetts 413 545-2859 (W)
710 North Pleasant Street fax 413 545-1801
Amherst, MA 01003-9305