Live editor - Latex equation - Vertical line separating matrix columns

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Pavel Trnka
Pavel Trnka 2019-4-26
评论： Subhadeep Koley 2020-2-16
How to create a vertical line separaing matrix columns in the Latex equation in the Live Editor? Like for example:
eq1.gif
The horizontal line can be created by "\hline", but the vertical line specified in the column alignment argument does not work:
\left( \begin{array}{c|cc} 1 & 2 & 3 \\ \hline 4 & 5 & 6 \\ 7 & 8 & 9 \end{array} \right)
eq2.GIF
"\vline" does not work neither:
\left( \begin{array}{cccc} 1 & \vline & 2 & 3 \\ \hline 4 & \vline & 5 & 6 \\ 7 & \vline & 8 & 9 \end{array} \right)
eq3.GIF
  2 个评论
Jiri Dostal
Jiri Dostal 2020-2-16
I'd like to know the answer as well. The description of the issue is correct.
Subhadeep Koley
Subhadeep Koley 2020-2-16
@ Pavel Trnka, acoording to the documentation of Live Editor only \hline is supported. \vline is not mentioned in the list of supported LaTeX commands. The below workaround generates broken vertical lines. Try it that works!
\left( \begin{array}{ccc} 1 \vert & 2 & 3 \\ \hline 4 \vert & 5 & 6 \\ 7 \vert & 8 & 9 \end{array} \right)

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