Re: UNDO and Mathematica - how useless

*To*: mathgroup at smc.vnet.net*Subject*: [mg98601] Re: UNDO and Mathematica - how useless*From*: David Bailey <dave at removedbailey.co.uk>*Date*: Tue, 14 Apr 2009 06:14:38 -0400 (EDT)*References*: <200903251042.FAA24502@smc.vnet.net> <200904090955.FAA06846@smc.vnet.net> <grpict$lku$1@smc.vnet.net>

dbreiss at gmail.com wrote: > The backup functions in A WorkLife FrameWork are certainly a help here > (also note that there is a cell level backup functton there as well). > But it is not quite the solution needed for basic editing and textual > input. > > But I think that a basic Undo functionality in Mathematica is > essential. People have been asking for this for years, but WRI seems to have a complete blind spot in this matter :( In practice, a single-level UNDO is nearly useless, because of the uncertainty as to what constitutes a 'level' - particularly in the context of a complicated product like Mathematica. I would have thought UNDO is feasible for any non-output cell that does not contain Dynamic elements - plus perhaps a few other reasonable restrictions. David Bailey http://www.dbaileyconsultancy.co.uk

**References**:**Re: Re: UNDO and Mathematica - how useless is it?***From:*DrMajorBob <btreat1@austin.rr.com>