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How can I represent this matrix in latex ? enter image description here

user127621
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    Just as any other matrix with \begin{bmatrix} ... \end{bmatrix}. For the braces this might be helpful: https://tex.stackexchange.com/questions/130798/braces-over-matrix – Henri Menke Mar 14 '17 at 10:03
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    You'll get better help if you explain what you have got so far, and what specifically you are trying to achieve. – Seamus Mar 14 '17 at 10:29
  • Do you need the matrix for fixed n and k or do you need exactly what is shown on your drawing? – Fabian Pijcke Mar 15 '17 at 16:43

1 Answers1

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You might find this useful. As for adding a big 0, you can overlay with \smash and \rlap (or use a tikzpicture).

\documentclass{article}
\usepackage{mathtools}

%from page 117 of symbols.pdf
\makeatletter
\def\revddots{\mathinner{\mkern1mu\raise\p@
\vbox{\kern7\p@\hbox{.}}\mkern2mu
\raise4\p@\hbox{.}\mkern2mu\raise7\p@\hbox{.}\mkern1mu}}
\makeatother

\begin{document}
\begin{equation}
\begin{bmatrix}
0 & \cdots & 1\\
\vdots & \revddots & \vdots\\
1 & \cdots & 0
\end{bmatrix}
\end{equation}
\end{document}

demo

John Kormylo
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