Question

Problem 1: Use MATLAB to create a script file and publish a pdf file for the problem: Given that MX = Y, for the following matrices determine X using both matrix inversion and Gaussian elimination methods 7 -2 4.67 5 7 6.5 -8 13 Y = 13 Display results in short engineering format. Submit the published pdf file. Problem 2: Use MATLAB to create a script file and publish a pdf file for the problem: Given that MX = Y, for the following matrices determine X, using Gaussian elimination method: -5 -95 5 6.4 7.3 ME 9 -11 3.5 6.2 8.2 -14 8.3 5 -3.7 -2.5 Display results in short engineering format. Submit the published pdf file. (Hint: This problem is over-defined, therefore the results will be the LSSE)

Answer 1

clc

clear all

close all

format short e

M=[7,-2,4.6;9,5,7;6.5,-8,13];

Y=[5;13;-8];

disp('Using gaussian elimination');

X=M\Y

disp('Using inversion');

X=inv(M)*Y