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%Encode A1, b1 and x1 as the vector of unknowns. A1 = b1 = syms xv1 =     %Check the size of A, set it as m1 and n1 [m1,n1] =     %Augment A and b to form AM1 AM1 =     %Solve the Reduced Rwo Echelon of AM1. RREFA1 =     %Collect the last column and set as bnew1, set the remaining elements as Anew1 bnew1= Anew1 =     %Check if Anew is an identity matrix, if it is, bnew is the solution if Anew1 =eye(m1,n1) Root1 = bnew1 else display("No Solution") end     %Augment the matrix A1 with the identity Matrix of the same size, set the result as AMI1 AMI1 = %Find the reduced row echelon form of AMI1, set the result as RREFAI1 RREFAI1= %Collect the second half of the matrix as AInew1, set the remaining elements as AIold1 AInew1= AIold1 =     %Check if AIold1 is an identity matrix, if it is, AInew1 is the inverse         %Encode A2, b2 and xv2 as the vector of unknowns. A2 = b2 = syms xv2 =     %Check the size of A2, set it as m2 and n2 [m2,n2] =     %Augment A2 and b2 to form AM2 AM2 =     %Solve the Reduced Rwo Echelon of AM2. RREFA2 =     %Collect the last column and set as bnew2, set the remaining elements as Anew2 bnew2= Anew2 =     %Check if Anew is an identity matrix, if it is, bnew2 is the solution if Anew1 =eye(m2,n2) Root2 = bnew2 else display("No Solution") end     %Augment the matrix A2 with the identity Matrix of the same size, set the result as AMI2 AMI2 = %Find the reduced row echelon form of AMI2, set the result as RREFAI2 RREFAI2= %Collect the second half of the matrix as AInew2, set the remaining elements as AIold2 AInew2= AIold2 =     %Check if AIold2 is an identity matrix, if it is, AInew2 is the inverse

%Encode A1, b1 and x1 as the vector of unknowns. A1 = b1 = syms xv1 =     %Check the size of A, set it as m1 and n1 [m1,n1] =     %Augment A and b to form AM1 AM1 =     %Solve the Reduced Rwo Echelon of AM1. RREFA1 =     %Collect the last column and set as bnew1, set the remaining elements as Anew1 bnew1= Anew1 =     %Check if Anew is an identity matrix, if it is, bnew is the solution if Anew1 =eye(m1,n1) Root1 = bnew1 else display("No Solution") end     %Augment the matrix A1 with the identity Matrix of the same size, set the result as AMI1 AMI1 = %Find the reduced row echelon form of AMI1, set the result as RREFAI1 RREFAI1= %Collect the second half of the matrix as AInew1, set the remaining elements as AIold1 AInew1= AIold1 =     %Check if AIold1 is an identity matrix, if it is, AInew1 is the inverse         %Encode A2, b2 and xv2 as the vector of unknowns. A2 = b2 = syms xv2 =     %Check the size of A2, set it as m2 and n2 [m2,n2] =     %Augment A2 and b2 to form AM2 AM2 =     %Solve the Reduced Rwo Echelon of AM2. RREFA2 =     %Collect the last column and set as bnew2, set the remaining elements as Anew2 bnew2= Anew2 =     %Check if Anew is an identity matrix, if it is, bnew2 is the solution if Anew1 =eye(m2,n2) Root2 = bnew2 else display("No Solution") end     %Augment the matrix A2 with the identity Matrix of the same size, set the result as AMI2 AMI2 = %Find the reduced row echelon form of AMI2, set the result as RREFAI2 RREFAI2= %Collect the second half of the matrix as AInew2, set the remaining elements as AIold2 AInew2= AIold2 =     %Check if AIold2 is an identity matrix, if it is, AInew2 is the inverse

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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What to input here to run properly?
%Encode A1, b1 and x1 as the vector of unknowns.
A1 =
b1 =
syms
xv1 =

 

 
%Check the size of A, set it as m1 and n1
[m1,n1] =

 

 
%Augment A and b to form AM1
AM1 =

 

 
%Solve the Reduced Rwo Echelon of AM1.
RREFA1 =

 

 
%Collect the last column and set as bnew1, set the remaining elements as Anew1
bnew1=
Anew1 =

 

 
%Check if Anew is an identity matrix, if it is, bnew is the solution
if Anew1 =eye(m1,n1)
Root1 = bnew1
else
display("No Solution")
end

 

 
%Augment the matrix A1 with the identity Matrix of the same size, set the result as AMI1
AMI1 =
%Find the reduced row echelon form of AMI1, set the result as RREFAI1
RREFAI1=
%Collect the second half of the matrix as AInew1, set the remaining elements as AIold1
AInew1=
AIold1 =

 

 
%Check if AIold1 is an identity matrix, if it is, AInew1 is the inverse

 

 

 

 
%Encode A2, b2 and xv2 as the vector of unknowns.
A2 =
b2 =
syms
xv2 =

 

 
%Check the size of A2, set it as m2 and n2
[m2,n2] =

 

 
%Augment A2 and b2 to form AM2
AM2 =

 

 
%Solve the Reduced Rwo Echelon of AM2.
RREFA2 =

 

 
%Collect the last column and set as bnew2, set the remaining elements as Anew2
bnew2=
Anew2 =

 

 
%Check if Anew is an identity matrix, if it is, bnew2 is the solution
if Anew1 =eye(m2,n2)
Root2 = bnew2
else
display("No Solution")
end

 

 
%Augment the matrix A2 with the identity Matrix of the same size, set the result as AMI2
AMI2 =
%Find the reduced row echelon form of AMI2, set the result as RREFAI2
RREFAI2=
%Collect the second half of the matrix as AInew2, set the remaining elements as AIold2
AInew2=
AIold2 =

 

 
%Check if AIold2 is an identity matrix, if it is, AInew2 is the inverse
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