Problem Set 2: Guassian elimination, computational complexity

This assignment has coding and written parts. Upload written parts as a pdf here. Submit your code to scorelator. 

Quiz 2 will ask questions about this assignment. You may want to start Quiz 2 while you work through the assignment. 

Here is the problem set:ProblemSet2.pdf and you will also need this .m file: GE_NMM.m

 Here is the code you can switch out to check that the filename you pass to the function is a string:

if ((ii == 2) && isa(filename,'char'))
save(filename, 'a', '-ascii')
end

Here is a tutorial on the GE_NMM.m code: https://www.youtube.com/watch?v=QiZ-geoAaaM

I also walk you through a bit about debugging in Matlab.

 Update 10/16/2016

There was a typo in our solution set on scorelator for 1.2a (we both had a 6 in A(1,3) instead of a -6).  We have corrected this and given you 1 extra attempt on scorelator, due the same day and time.

Update: 10/14/2016 5:18PM I edited the pdf file with the following clarifications: 

1.1b now reads: "Add code that does the following (you will have to modify the function): 

• check if the current pivot is zero ...."

and  "call the modified function  [a2\_{out}] = GE\_NMM(a2,filename); in your script.

1.2 (end paragraph after matrices) now reads: You should be able to solve all of these using the same algorithm from problem 1.1d, GE_solve.m. If you cannot, fix your algorithm.