1

I am trying to write it on latex:

enter image description here

But i couldn't! Can anyone help me?

  • 5
    Welcome to TeX SX! Load amsmath and use the bmatrix environment. – Bernard Nov 4 '17 at 23:36
4

As Bernard said, it is simple enough using the bmatrix environment.

Code:

\documentclass{article}
\usepackage{amsmath}

\begin{document}
\Huge
\[
\sigma=
  \begin{bmatrix}
    \sigma_{xx} & \sigma_{xy} & \sigma_{xz} \\
    \sigma_{xy} & \sigma_{yy} & \sigma_{yz} \\
    \sigma_{xz} & \sigma_{yz} & \sigma_{zz} \\
  \end{bmatrix}=
  \begin{bmatrix}
    \sigma_{xx} & \tau_{xy} & \tau_{xz} \\
    \tau_{xy} & \sigma_{yy} & \tau_{yz} \\
    \tau_{xz} & \tau_{yz} & \sigma_{zz} \\
  \end{bmatrix}
\]
\end{document}

Yields:

enter image description here

  • 4
    amsart could change a lot the format. Just load amsmath. – Sigur Nov 5 '17 at 0:33

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