Hi Ivan,
Just to follow up on Paul's solution, you can go one step further and
make the equation number automatic. Suppose that you have equation (3)
and you also have a rewritten form of that equation, call it (3'). Do
all of the steps that Paul has indicated, except rather than putting
in the number 3, click on the cross-reference tool in the LyX toolbar.
Then select the equation of interest and then apply. To refer to
equation 3' elsewhere in the paper is a little in-elegant -- insert
the cross reference to point to the original form of the equation,
then go into math mode (inline equation) right after the cross
reference and insert the prime symbol. Now, if you add or delete
equations before the original equation, all of the numbers
automatically update.
-Neil
=============================================
Neil Hepburn, Economics Instructor
Department of Social Sciences, Augustana Faculty
University of Alberta
4901-46 Avenue
Camrose, Alberta T4V 2R3
Phone (780) 679-1588
email nhepb...@augustana.ca
On 14-Dec-08, at 9:24 AM, Paul A. Rubin wrote:
Ivan Werning wrote:
How do I change an equation number that was chosen automatically
from forcing a particular number or symbol?
That is, I want the analog of \tag in Latex
For example, I have an equation that is numbered "(5)" which is
chosen by default because it comes after "(4)". That's the correct
normal behavior of course. However, I want to break briefly out of
the default and number this one equation "(3')" because it is a
variant of a previous equation numbered "(3)".
Well, \tag will work. Stick the cursor in the equation. If it's
already being numbered, M-m n will remove the automatic number.
Then enter '\tag' followed by space, which will create a widget. In
the widget, type '\ensuremath' followed by a space to get a nested
widget. Type "3'" (or "3^\prime" if you're a purist) in the inner
widget (no parentheses). The display in the GUI is, ah, less than
esthetically pleasing, but it comes out right in the DVI. The inner
widget is needed to get you into math mode if you're going to use a
superscript.
I'm not sure if there's a more LyXish way to do it.
HTH,
Paul
