2

I have the following document:

\documentclass{article}
 \usepackage{ stmaryrd }
 \usepackage{amsmath}
 \begin{document}
$\left\llparenthesis\!\!\!\left\llparenthesis\!
\begin{matrix}
1\\2\\3
\end{matrix}
\!\right\rrparenthesis\!\!\!\right\rrparenthesis
$
\end{document}

which provides the following:

enter image description here

How do I change the code to provide both brackets as long as the numbers 1, 2 and 3?

4
  • the characters are not extendable and your example produces the error ! Missing delimiter (. inserted). so no usable output. This is a feature of the font so not changable from tex. Commented Sep 23, 2023 at 9:22
  • why the negative spacing and overprinting? Commented Sep 23, 2023 at 9:24
  • How do I correct the document to get rid of that error?
    – Alezigl
    Commented Sep 23, 2023 at 9:26
  • you can only apply \left and \right to specified delimiter characters. Commented Sep 23, 2023 at 9:32

1 Answer 1

4

The font does not supply extensable so you can not use \left or \right.

If you really want to fake this, you could do something like

enter image description here

\documentclass{article}
 
 \usepackage{amsmath}

 \begin{document}
$\left(\mkern-1.5mu\vrule width.7pt\mkern2mu
\begin{matrix}
1\\2\\3
\end{matrix}
\mkern2mu\vrule width .7pt\mkern-1.5mu\right)
$
\end{document}
1
  • Thank you! This is what I was looking for.
    – Alezigl
    Commented Sep 23, 2023 at 11:29

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