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