Drawing a box around certain parts of a matrix

Asked Dec 20 '12 at 14:55

Active Jun 09 '17 at 17:25

Viewed 1,713 times

Possible Duplicate:
Highlight elements in the matrix

i have a matrix:

\begin{equation} 
\begin{bmatrix}
    1 & 5 & 4 & 2 & 1 \\
    1 & 5 & 4 & 2 & 1 \\
    1 & 5 & 4 & 2 & 1 \\
\end{bmatrix}
\label{e:crop1}
\end{equation}

and i would like to draw a box around a few of the values to highlight a selection & label it, how would i go about this?

I've looked at nodes but havent got a clue. thanks

edited Jun 09 '17 at 17:25

barbara beeton

88,848

asked Dec 20 '12 at 14:55

Callum

Welcome to TeX.sx! Do you want the box to be around one element, or around a group of elements (e.g. column or 2x2 submatrix)? The first can be solved by putting \fbox{4} instead of just 4. – yo' Dec 20 '12 at 14:59
6

Hi. There are plenty of good questions on this already here. See e.g. How to highlight elements in the matrix and How to highlight at single element in a matrix. – Alan Munn Dec 20 '12 at 15:04
Please tell us then (in a comment) which question matched your question best and could be linked as a duplicate, if meaningful. – Stefan Kottwitz Dec 20 '12 at 15:21
https://tex.stackexchange.com/questions/333011/draw-a-box-around-matrix-elements is a similar question. – reyna May 29 '20 at 06:01

Drawing a box around certain parts of a matrix

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