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Re: Marbles.nb [was Re: CellChangeTimes?]

  • To: mathgroup at smc.vnet.net
  • Subject: [mg105924] Re: Marbles.nb [was Re: CellChangeTimes?]
  • From: David Reiss <dbreiss at gmail.com>
  • Date: Sat, 26 Dec 2009 19:07:07 -0500 (EST)
  • References: <hgidat$o2q$1@smc.vnet.net> <hgl3e5$14p$1@smc.vnet.net>

On Dec 22, 4:03 am, AES <sieg... at stanford.edu> wrote:
> In article <hgnnn4$4n... at smc.vnet.net>, magma <mader... at gmail.com>
> wrote:
>
>
>
>
>
>
>
> > Interesting example AES!
> > Indeed FullForm does not reveal anything.
> > Show Expression is what you need.
> > Let's call "mutated" the cell with
> > Cell["-(b-a) I", "Input"]
> > That's because it is not a normal input cell. I can only get it via
> > copying your cell.
> > It is viewed by Mathematica as a string (because of the "..."), but she=
 makes
> > calculations with it.
> > You can see this by changing the mutated cell to
> > -(b-a+a)  I
> > and you see that Mathematica correctly adds the a's.
> > By the way, the number of spaces between ) and I is not relevant for
> > either the regular or the mutated cell.
> > Now, having reached my hacking incompetence level, I leave the experts
> > further investigate the matter.
> > Just a question....The nb was version 4.2, how come?
>
> That's strange, and I have no idea.  I'm running 7.0.1.0 on a 2007-era
> MacBook; ran 5.2 and 6 on this same machine before that; haven't kept
> any older versions around; don't recall offhand if 4.2 would ever have
> been on this machine.
>
> How does one look at the version of a nb?

Open up the notebook in a text editor an look at the header
information at the top.  there will be a line like


(* CreatedBy='Mathematica 7.0' *)

--David


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