Please read these instructions before you attempt to solve this problem.

Download the live script file MAT$343$lab$2$ex$4.$mlx and open it with matlab. Run the file and use the information provided to complete the following exercise. For your convenience, a pdf version is also provided. Before you attempt this exercise, you might want to watch the last video of the video tutorials for this lab.

The product $y=Ax$ of an $mxn$ matrix A times a column vector $x=(x_1,x_2,$dots,$x_n{)}^T$ can be computed row$-$wise as below:

$y=[A(1,$:$)**x$;$A(2,$:$)**x$;dots;$A(m,$:$)**x]$

that is

$y(1)=A(1,$:$)**x$

$y(2)=A(2,$:$)**x$

cdots

$y(m)=A(m,$:$)**x$

Write a function named myrowproduct that takes in input a matrix $A,$ a column vector $x$ and a random number $k,$ and as output gives the product $y=Ax$ computed by row as defined above, and the intermediate value, $z,$ of the output vector at the end of $k$ iterations $($this intermediate value is used by MATLAB Grader to determine whether your code is correct$).$

Specific instructions for writing the function:

function $[y,z]=$ myproductrow $(A,x,k)$

$\%$ This function evaluates the product $A**x$ by row

$\%$ where $A$ is a matrix and $x$ is a vector

$\%$ Kortney Schaum

$[m,n]=$size$(A)$;

$[p,q]=$size$(x)$;

if $n==p,$&&$,q==1$

$y=$zeros$(m,1)$;

$z=[]$;

for $i=1$:$k$

$y=A**x$;

if $i==k$

$z=y(1)$;

end

end

$y=[]$;

$z=[]$;

end

end

Code to call your function $?$

C Reset