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Hi Frank,

As Max suggests, the easiest solution is probably to draw above your matrix.
However, this solution is of course not very robust if you add an extra cell
or when you change the font.

Another option is to use tables and manually put big brackets in cells
that span an entire column. You may join cells in a selection using
Focus -> Join selected cells. You probably want to vertically center
such a cell, insert a pair of brackets, manually resize using
M-up / M-down (or whatever is appropriate for your look and feel),
and remove the closing or opening bracket. Unfortunately,
we do not have any way to automatically adjust the vertical height
to the height of the cell, but still, the solution is a bit more robust
then drawing over the matrix, and should allow you to construct very
complex annotated matrices.

Best wishes, --Joris



On Sat, Mar 21, 2020 at 11:10:02AM +0100, Massimiliano Gubinelli wrote:
> As far as I know is not possible. You could experiment a bit with
> constructs which shift the content and which you find in
>
> Format -> Adjust
>
> e.g. "Shift". You can place the content inside the matrix and the shift it
> out of it visually. However it still occupy place so you would ahve to
> experimetn with other constructs, maybe one of them remove the size... good
> luck
>
> another approach is to put the matrix in a drawing, so that you can freely
> place content around.
>
>
> Max
>
>
> > On 21. Mar 2020, at 11:01, Frank <address@hidden> wrote:
> >
> > Dear all,
> >
> > I wonder how to add items or labels to a matrix beyond the parenthesis?
> > For example, I want to add a label "L4" to the left of the fourth line,
> > or add a label "C4" on top of the fourth column. I don't know how to do
> > that properly.
> >
> > Best wishes,
> >
> > Frank
> >
> > --
> > Best wishes!
> > Yours,
> >
>

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• Items or labels of a matrix beyond the parenthesis?, Frank, 03/21/2020
  • Re: Items or labels of a matrix beyond the parenthesis?, Massimiliano Gubinelli, 03/21/2020
    • Re: Items or labels of a matrix beyond the parenthesis?, TeXmacs, 03/26/2020
  • Re: Items or labels of a matrix beyond the parenthesis?, OIKONOMOU, KOSTAS N (KOSTAS N), 03/21/2020
  • Re: Items or labels of a matrix beyond the parenthesis?, Basile Audoly, 03/22/2020

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