User

Consider $5$x$1$

vectors x$,$ y$,$ z

Denote their respective

ith entry as

for all i $=1,2,..\mathrm{.}5.$

Assuming

for all z$\_1$ does not equal $0$ for all of i

which of the following is the correct way to compute

$($x$\_$iy$\_$i$)/$z$\_$i $+($x$\_2$y$\_2)/$z$\_2+...+($x$\_5$y$\_5)/$z$\_5$

in MATLAB?

sum $(($x$.*$y$)./$z$)$

sum$(($x$*$y$)/$z$)$

$($x$.*$y$)./$z