0

I want to display the following matrix in texmaker. please suggest.

6
  • Welcome o TeX.sx. It has nothing to do with TeXmaker. It is just an editor. Have you read an introduction to LaTeX? It is all about Math mode.
    – Johannes_B
    Nov 15, 2019 at 5:33
  • yes, I am able to write the matrix part but unable to write that Es. PM = \begin{pmatrix} \alpha_{11} & \alpha_{12} & ... & \alpha_{1M} \\ \alpha_{21} & \alpha_{22} & ... & \alpha_{2M} \\ . & . &. &. \\ . & . &. &. \\ . & . &. &. \\ \alpha_{M1} & \alpha_{M2} & ... & \alpha_{MM} \end{pmatrix} Nov 15, 2019 at 5:35
  • I am unable o write the left side Es and the upper side Es. Please suggest. Nov 15, 2019 at 5:38
  • Use blkarray: \documentclass{article} \usepackage{blkarray} \begin{document} \[PM= \begin{blockarray}{ccccc} & E_1 & E_2 & \cdots & E_M\\ \begin{block}{c(cccc)} E_1 & \alpha_{11} & \alpha_{12} & \cdots & \alpha_{1M}\\ E_2 & \alpha_{21} &\alpha_{22} & \cdots & \alpha_{2M}\\ \vdots & \vdots & \vdots & \ddots & \vdots\\ E_M & \alpha_{M1} & \alpha_{M2} & \cdots & \alpha_{MM}\\ \end{block} \end{blockarray} \] \end{document}
    – user194703
    Nov 15, 2019 at 5:40
  • It worked. Thanks Schrödinger's cat. Nov 15, 2019 at 5:46

1 Answer 1

2

You can use nicematrix:

\documentclass{article}
\usepackage{nicematrix}

\begin{document}
$PM = 
\begin{pNiceMatrix}[first-row,first-col]
& E_1 & E_2 & \Cdots & E_M \\
E_1 & \alpha_{11} & \alpha_{12} & \Cdots & \alpha_{1M} \\
E_2 & \alpha_{12} & \alpha_{22} & \Cdots & \alpha_{2M} \\
\Vdots & \Vdots & \Vdots & \Ddots & \Vdots \\
E_M & \alpha_{M_1} & \alpha_{M2} & \Cdots & \alpha_{MM}
\end{pNiceMatrix}$
\end{document}

enter image description here

Not the answer you're looking for? Browse other questions tagged or ask your own question.