Re: Re: Phase Portrait
- To: mathgroup at smc.vnet.net
- Subject: [mg76292] Re: [mg76243] Re: Phase Portrait
- From: Murray Eisenberg <murray at math.umass.edu>
- Date: Sat, 19 May 2007 04:35:47 -0400 (EDT)
- Organization: Mathematics & Statistics, Univ. of Mass./Amherst
- References: <f2hck0$2fc$1@smc.vnet.net> <200705181017.GAA13210@smc.vnet.net>
- Reply-to: murray at math.umass.edu
This is another nice example where the anti-aliasing in 6.0 gives a much
smoother image.
Jens-Peer Kuska wrote:
> Hi,
>
> and
>
> ContourPlot[p^2/2 + Cos[x], {x, -Pi, Pi}, {p, -4, 4}]
>
> draw the pahs portrait of a pendelum ? with a perfect
> separatrix, in version 6.0 ??
>
> And including 1.0 into the Contours option will do it in
> version 5.2 also ??
>
> Regards
> Jens
>
>
> herato wrote:
>> Hi!
>> I would like to plot a simple phase portrait of some standard equation
>> such as the pendulum .
>>
>> How to do it?
>>
>> It is completely equivalent to plot sublevels of the Hamiltonian, but
>> in this case Mathematica does not plot the separatrix.....
>>
>>
>> Thanks a lot!!!!
>>
>>
>
--
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
- References:
- Re: Phase Portrait
- From: Jens-Peer Kuska <kuska@informatik.uni-leipzig.de>
- Re: Phase Portrait