RolyPoly
How to type a 3x3 determinant??



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UnkleRhaukus
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```
\[
\det{\bf A}=
\left
\begin{array}{ccc}
a_{11}&a_{12}&a_{13}\\
a_{21}&a_{22}&a_{23}\\
a_{31}&a_{32}&a_{33}
\end{array}
\right
\]
```
\[
\det{\bf A}=
\left
\begin{array}{ccc}
a_{11}&a_{12}&a_{13}\\
a_{21}&a_{22}&a_{23}\\
a_{31}&a_{32}&a_{33}
\end{array}
\right
\]

RolyPoly
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Nice!! Thanks!! How do you type that grey box?

UnkleRhaukus
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2
```
like this
```

RolyPoly
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It doesn't work? :\

UnkleRhaukus
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no space before the the `'s on the third line

RolyPoly
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`Testing ` Oh! It works!! Thanks again!!!

UnkleRhaukus
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```
\checkmark
```

RolyPoly
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` How come your box is soooooo long in terms of its length!!! `

RolyPoly
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\[\checkmark\] o.O!