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Re: Re: Undo in Mathematica

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  • Subject: [mg105091] Re: [mg105053] Re: Undo in Mathematica
  • From: Yuri Kandrashkin <spinalgebra at>
  • Date: Fri, 20 Nov 2009 06:41:13 -0500 (EST)
  • References: <hdttmo$he4$> <>

Sometimes when I need to save changes during the edition of the document I
use the "preserving" function of the Sidebar tools. This is not a real
multiple UNDO but it helps me to return to the previous changes. The package
is available at

2009/11/19 David Bailey <dave at>

> 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.
> 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

Yuri Kandrashkin, PhD

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