0 
$$
\text{i: current-state}\Bigg\{\begin{matrix}0 \\  1 \\ 2\end{matrix}\underbrace{\begin{bmatrix}P_{00} & P_{01} & P_{02} \\ P_{10} & P_{11} & P_{12} \\ P_{20} & P_{21} & P_{22}\end{bmatrix}}_{\text{j: next-state: 0, 1 ,2 }}
$$

What's the best way to create a matrix with rows and columns numbered...

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3
  • 2
    The code throws errors (\Bigg{ should probably be \Biggl\{) and there is only one row in this matrix. Please try to explain the problem better.
    – campa
    Jul 31, 2020 at 15:08
  • 2
    Off-topic: in LaTeX don't use $$. Rather use \[ ... \].
    – Zarko
    Jul 31, 2020 at 15:23
  • The best way is use of the tools with which you are familiar. For example see nicetabular (see tex.stackexchange.com/questions/512393/… or answer below) or blkarray (see example tex.stackexchange.com/questions/335444/…).
    – Zarko
    Aug 13, 2020 at 6:42

1 Answer 1

Reset to default
4

Here is a suggestion.

\documentclass{article}
\usepackage{array,amsmath}
\begin{document}


$\begin{array}{c@{}c}
\text{text} \left\{\begin{array}{c@{}}
0 \\ 1 \\ 2 \\
\end{array}\right.
& \left[\begin{array}{@{}*{3}{wc{5mm}}@{}}
$P_{00}$ & $P_{01}$ & $P_{02}$ \\
$P_{10}$ & $P_{11}$ & $P_{12}$ \\
$P_{20}$ & $P_{21}$ & $P_{22}$ \\
\end{array}\right]\\
&
\underbrace{\begin{array}{@{}*{3}{wc{5mm}}@{}}
0 & 1 & 2 
\end{array}}_{\text{text}}
 \end{array}$

\end{document}

Output of the above code

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1
  • Remark: In the future version of LaTeX (oct. 2020), the wc columns of array will be in math mode whereas they are in text mode as of now.
    – F. Pantigny
    Jul 31, 2020 at 20:02

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