Develop a system of linear equations for the network by writing an equation for each router (A, B, C, D, and E). Make sure to write your final answer as Ax=b where A is the 5x5 coefficient matrix, x is the 5x1 vector of unknowns, and b is a 5x1 vector of constants.

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
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1. Develop a system of linear equations for the network by writing an equation for each router (A, B, C, D, and E). Make sure to write your final answer as Ax=b where A is the 5x5 coefficient matrix, x is the 5x1 vector of unknowns, and b is a 5x1 vector of constants.

2. construct the augmented matrix [A b] and then perform row reduction using the rref() function. Write out your reduced matrix and identify the free and basic variables of the system.

3. Use MATLAB to compute the LU decomposition of A, i.e., find A = LU. For this decomposition, find the transformed set of equations Ly = b, where y = Ux. Solve the system of equations Ly = b for the unknown vector y.

4. Compute the inverse of U using the inv() function.

5. Compute the solution to the original system of equations by transforming y into x, i.e., compute x = inv(U)y

6. Check your answer for x1 using Cramer’s Rule. Use MATLAB to compute the required determinants using the det() function.

Network
Link
X1
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X3
X4
X5
Recommended
Capacity (Mbps)
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100
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50
Solution
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Explanation
Transcribed Image Text:Network Link X1 X2 X3 X4 X5 Recommended Capacity (Mbps) 60 50 100 100 50 Solution [Insert text] [Insert text] [Insert text] [Insert text] [Insert text] Recommendation [Insert text] [Insert text] [Insert text] [Insert text] [Insert text] [Insert text] [Insert text] [Insert text] [Insert text] [Insert text] Explanation
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