Using this sample matlab code: clear all; clc A= ????????; B= ????????; AUG=[A B]; for L=1:size(A,2) %Pivoting starts for k=L:size(AUG,1) for m=k+1:size(AUG,1) if abs(AUG(k,L))<abs(AUG(m,L)) temp=AUG(m,:); AUG(m,:)=?????????; AUG(k,:)=?????????; end end end %Pivoting ends %Gauss...

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Question

Mechanical Engineering

Using this sample matlab code:
clear all;
clc
A= ????????;
B= ????????;
AUG=[A B];
for L=1:size(A,2)
%Pivoting starts
for k=L:size(AUG,1)
for m=k+1:size(AUG,1)
if abs(AUG(k,L))temp=AUG(m,:);
AUG(m,:)=?????????;
AUG(k,:)=?????????;
end
end
end
%Pivoting ends
%Gauss Elimination starts
for k=L+1:size(AUG,1)
AUG(k,:)= ????????????????????????????;
AA=AUG(:,1:size(A,2))
BB=AUG(:,size(A,2)+1:end)
end
%Gauss Elimination ends
end
b)Write a MATLAB M-file which performs gauss elimination withoutpivoting step by step and shows the coefficient matrix in eachstep. Using cond (X, P) calculate the condition number of the finalstep coefficient matrix (U matrix).
c) Write a MATLAB M-file which performs gauss elimination withpivoting step by step and shows the coefficient matrix in eachstep.
d)Using cond (X, P) calculate the condition number of the finalstep coefficient matrix (U matrix).

Answer & Explanation Solved by verified expert

4.2 Ratings (538 Votes)

clc clear Gauss elimination WITHOUT Pivoting A 3 1 4 1 5 2 3 1 7 b 1 4 7 n n sizeA Check for zero diagonal elements if anydiagA0 errorDivision by zero will occur pivoting not supported end Forward elimination for row1n1 for irow1n factor Airow Arowrow See Answer

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