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# Displaying a Matrix-Vector Eq with LaTeX

1. ### kimspg

1
A bit OT, I know, but there must be a way to get matrices to appear on the same line so I can write matrix-vector equations.

2. ### matt grime

9,396
matrices can usually be displayed with an array argument, plus some bracketing argument

3. ### chroot

10,427
Staff Emeritus
Like this?

$$\sigma_{3} = \left( \begin{array}{cc} 1 & 0\\ 0 & -1 \end{array} \right)$$

- Warren