# How to use matrix notations in my posts?

by Ronankeating
Tags: matrix, notations, posts
 P: 64 Hi all, I'm pretty new with how to use HTML text editor effectively when posting the new threads. Generally I can deal with math/physics symbols on the editor bar but don't now how to write that huge square brackets for, say 10x10, matrix and populate it. Regards,
 Sci Advisor HW Helper PF Gold P: 4,100 $$\left( \begin{array}{lrc} 1001 & 1002 & 1003\\ 4 & 5 & 8\\ \end{array} \right)$$ right-click it
 P: 1,035 $$M = \left[ {\begin{array}{cc} x & y \\ z & w \end{array} } \right]$$ http://www.rizauddin.com/2009/05/how...trix-in-latex/
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## How to use matrix notations in my posts?

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P: 11,964
 Quote by robphy $$\left( \begin{array}{lrc} 1001 & 1002 & 1003\\ 4 & 5 & 8\\ \end{array} \right)$$ right-click it
I find I have to do a little more:
• Right-click it
• Click or move cursor to "Show Math As"
• Click "TeX Commands"

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