[Tex/LaTex] Can you put two matrices in display mode side by side in LyX

lyxmath-modematrices

I have two matrices, and I want to render them side by side with appropriate space in between in display mode. How should it be implemented in LyX?

Best Answer

No idea how things are in LyX, but here's one way to do it using LaTeX:

\documentclass{article}
\usepackage{amsmath}

\begin{document}

\[
  A=
  \begin{bmatrix}
    0 & 1 & 1 \\
    1 & 0 & 1
  \end{bmatrix}\quad
  B=
  \begin{bmatrix}
    1 & 0 & 0 \\
    0 & 1 & 0
  \end{bmatrix}
\]

\end{document}

enter image description here

Code

\documentclass{article}
\begin{document}
\[
\left(\begin{array}{@{}ccc|c@{}}
     1 &  2 & 0 & 0 \\
    -1 &  1 & 2 & 0 \\
     1 &  0 & 1 & 5 \\
     0 & -2 & 1 & 4
\end{array}\right)
\sim
\left(\begin{array}{@{}ccc|c@{}}
    1 &  2 & 0 & 0 \\
    0 &  3 & 2 & 0 \\
    0 & -2 & 1 & 5 \\
    0 & -2 & 1 & 4
\end{array}\right)
\]
\end{document}

Output

enter image description here

Improvement

If you use those matrices more than once you can define a new environment that does this for you:

\documentclass{article}
\newenvironment{rowequmat}[1]{\left(\array{@{}#1@{}}}{\endarray\right)}
\begin{document}
\[
\begin{rowequmat}{ccc|c}
     1 &  2 & 0 & 0 \\
    -1 &  1 & 2 & 0 \\
     1 &  0 & 1 & 5 \\
     0 & -2 & 1 & 4
\end{rowequmat}
\sim
\begin{rowequmat}{ccc|c}
    1 &  2 & 0 & 0 \\
    0 &  3 & 2 & 0 \\
    0 & -2 & 1 & 5 \\
    0 & -2 & 1 & 4
\end{rowequmat}
\]
\end{document}

Best Answer

Related Solutions

[Tex/LaTex] Two matrices side by side

[Tex/LaTex] Side by Side matrices

Code

Output

Improvement

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