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referencing auto-numbered cell

• To: mathgroup at smc.vnet.net
• Subject: [mg111960] referencing auto-numbered cell
• From: Murray Eisenberg <murray at math.umass.edu>
• Date: Sun, 22 Aug 2010 08:09:24 -0400 (EDT)
• Organization: Mathematics & Statistics, Univ. of Mass./Amherst
• Reply-to: murray at math.umass.edu

I have a cell style (Exercise) in a style sheet whose definition 
includes a CounterIncrements option (CounterIncrements->"Exercise").

Suppose I have a particular cell, call it cellA, with that style.   Into 
that cell I've inserted an Automatic Numbering number for counter 
Exercise. And I've given that cell the cell tag "exercA".

In another, text, cell, say cell cellB, how can I insert the NUMBER of 
that cellA?

Of course I want to do this in a robust way: if the automatic number of 
cellA later changes because I insert or delete other Exercise cells 
before it that also have the same Automatic Numbering counter, then in 
cellB the number referenced from cellA should correspondingly change.

(Of course I already know how to insert simply a hyperlink to that other 
cell: that's trivial. But that's not what I'm asking.)

It looks like I'm trying to include some kind of Dynamic object within 
these cells, but I don't know how, even looking at the cells' underlying 
expressions (with Ctrl Shift E) .

-- 
Murray Eisenberg                     murray at math.umass.edu
Mathematics & Statistics Dept.
Lederle Graduate Research Tower      phone 413 549-1020 (H)
University of Massachusetts                413 545-2859 (W)
710 North Pleasant Street            fax   413 545-1801
Amherst, MA 01003-9305