How do I note two vectors at once?

Question

I want to note down two vectors at once. Is that possible?

I would image something like $\vec{v}, \vec{w}=[1, 2], [2, 4]$.

Answer 1

You could say $(\vec{v}, \vec{w})=([1, 2], [2, 4])$.

As is mentioned in the comments, this is not necessarily the best way to go. Defining them "separately," i.e., $\vec{v}=[1, 2]$, $\vec{w}=[2, 4]$ is probably better.

Answer 2

Perhaps you could try using matrices:

$$ \left[ \begin{array}{c} \mathbf{\ \color{red}{v}}\\ \mathbf{\color{green}{w}} \end{array} \right] = \left[ \begin{array}{cc} \color{red}{1} & \color{red}{2}\\ \color{green}{2} & \color{green}{4} \end{array} \right]$$ where, $v=(1,2)$ and $w=(2,4)$.