"R. Lahaye" wrote:
>
> Hi,
>
> I have in Display mode a Math-matrix with certain dimensions
> all set up with beautiful formulas already.
>
> However, I need to add another row to this matrix.
> Is there a LyX tool to do that (similar to add/change
> the dimensions of a table) ?
>
> The Matrix in the Math-panel seems always to add a new matrix
> from scratch......
put the cursor anywhere in the matrix and hit ctrl-enter, than
you'll get what you want, a new row direct behind the cursor-
position! pay only attention, that the cusror
is not in a cell AND there in an equation. therefore the part
right from the cursor-position of this equation went into
the first cell of the new row.
> PS: if there's no tool for this, then
> would I lose information when I save the file as TeX, edit the TeX
> file (add row to matrix) and then load it again in LyX ?
for this case you can edit the lyx-file, but remember, that
lyx don't know, what you are doing there ... ;-)
in your lyx-file a matrix look like
\begin_inset Formula \[
\begin{array}{cccc}
& & & \\
& & & \\
& & & \\
\end{array}\]
three rows with four colums. now you can add a column
or a row, e.g. for a new column:
\begin{array}{ccccc}
& & & & \\
& & & & \\
& & & & \\
\end{array}\]
Herbert
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