Is is permissible to write an acceleration vector like they do in physics? So instead of the AP style <3t, t-4>, the vector could be written as (3t)i+(t-4)j?

Thanks

Bret

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- Feb 28th 2013, 04:20 AMbmnorvilhow to write an acceleration vector (for AP exam)
Is is permissible to write an acceleration vector like they do in physics? So instead of the AP style <3t, t-4>, the vector could be written as (3t)i+(t-4)j?

Thanks

Bret - Feb 28th 2013, 05:13 AMEstebanRe: how to write an acceleration vector (for AP exam)
yes, you can... vectors can be written (at least, I know this forms) as:

$\displaystyle \overlinearrow{a}=(a,b)$

$\displaystyle \overlinearrow{a}=a\hat{i}+b\hat{j}$

$\displaystyle \overlinearrow{a}=\begin{pmatrix}

a\\

b

\end{pmatrix}$

sorry, I don't know why TeX isn't working in the last form :c - Feb 28th 2013, 06:10 AMbmnorvilRe: how to write an acceleration vector (for AP exam)
Thanks!

All my math students are in physics now so I was thinking it would be smart to keep the notation from physics consistent in math.

Bret - Feb 28th 2013, 07:14 AMhollywoodRe: how to write an acceleration vector (for AP exam)
You can use \vec instead of \overlinearrow:

$\displaystyle \vec{a}$

and array instead of pmatrix:

$\displaystyle \left(\begin{array}{c}a\\ b\end{array}\right)$

The <br\> thing happens when you put pieces of the array on separate lines.

- Hollywood

Actually, it seems that pmatrix works:

$\displaystyle \begin{pmatrix}a\\ b\end{pmatrix}$

In fact, I think I like that better than what I got before with array.