Please help me on the matlab code and the complete question

Please help me on the matlab code and the complete question! pl0x

5. A matlab function for solving some equation can be found on the website, directly following the homework assignment link. The code is somewhat suboptimal. Clean it up a bit, trying to reduce the computational effort by

Solution

clc
clear;
tic
n=4025;
yv=8*rand(n);
toc

result

Elapsed time is 0.717379 seconds.