Re: Re: Undo in Mathematica
- To: mathgroup at smc.vnet.net
- Subject: [mg105069] Re: [mg105053] Re: Undo in Mathematica
- From: John Fultz <jfultz at wolfram.com>
- Date: Thu, 19 Nov 2009 07:25:39 -0500 (EST)
- Reply-to: jfultz at wolfram.com
On Thu, 19 Nov 2009 05:23:42 -0500 (EST), David Bailey wrote: > fd wrote: > >> All, >> >> I was wondering if and how I could do any useful "undo" in >> Mathematica. The one I get from the edit menu just allows me to undo >> the last step (if it is not evaluated). This is pretty unsatisfactory, >> even more for a program with this complexity. >> >> I've tried navigating in the Option Inspector without luck, maybe >> someone found something? >> >> >> F. >> >> > WRI claim that a general (multi-level) undo is impractical in notebooks > because of the complexity of the environment and potential size of the > files, but I would claim they could do a LOT better than the current > scheme. To set the record straight, WRI does not make that claim. Sincerely, John Fultz jfultz at wolfram.com User Interface Group Wolfram Research, Inc. > > For example, the could restrict the UNDO mechanism to cells that are not > generated (i.e. not output), and possibly the undo stack would only go > back as far as the previous evaluation. > > I would have thought a multi-level undo is pretty vital in an > interactive program! > > David Bailey > http://www.dbaileyconsultancy.co.uk
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