QUESTION $2$

The following is a MATLAB function to calculate ${\displaystyle \underset{i=1}{\overset{n}{}}}2A_i,$ where n is the length of the vector vec$(A)=[A_1,A_2,$dots,$A_n].$ Fill in the blank to complete the code. Do NOT type space in your answer. Note that MATLAB is case sensitive$.$

function $s=$ sumUp$(A)$

$\%is$ a vector here.

$q,s=0$;

for $i=1$ :length $(A)$

$s=s+$

end

end

$2$ points