Utilize the following linear system of equations for this activity. x₁ + 2x₂ + 3x₂ =9 3x₁ - x₂ = 3 2x₁ - x₂ + x₁ = 8 Note: Not all matrices have an LU decomposition. However, if the LU decomposition of a matrix doesn't exist, the rows of the matrix can always be permuted to yield a matrix that does have an LU decomposition. Consider the system of equations Ax=b where A does not have an LU decomposition. Let P be a permutation matrix (a matrix with a single 1 in each row and column). The permuted system of equations PAX = Pb still has the same solution, just the order in which the equations are written down is now different. For the correct permutation matrix, the matrix PA will have an LU decomposition. For more information, please see the MATLAB documentation for LU matrix factorization Script 1 XI need help with all of this, I feel I'm not doing this right. Save *Create the coefficient matrix A and and the column matrix b of constants. A [1 2 3; 3 -1; 2-11] 6b - [9; 3; 8] Reset MATLAB Documentation Use the lu() command to find the LU decomposition of A, storing the lower and upper matrices Xin L and U, respectively. 10 [L, U] - lu(A) 11 12 XSolve the system of linear equations Ax-b using the LU decomposition. Store the intermediary 13 %solution in y. Store the solution for x in x1. 14 y L\b 15 x1- U\b 16 %Check that the solution x1 matches that found by directly using the backslash operator to solve 17 %the system Ax-b. Use the backslash operator to solve Ax-b in one step, storing the solution in x2. 18 x2- Uly 19
Utilize the following linear system of equations for this activity. x₁ + 2x₂ + 3x₂ =9 3x₁ - x₂ = 3 2x₁ - x₂ + x₁ = 8 Note: Not all matrices have an LU decomposition. However, if the LU decomposition of a matrix doesn't exist, the rows of the matrix can always be permuted to yield a matrix that does have an LU decomposition. Consider the system of equations Ax=b where A does not have an LU decomposition. Let P be a permutation matrix (a matrix with a single 1 in each row and column). The permuted system of equations PAX = Pb still has the same solution, just the order in which the equations are written down is now different. For the correct permutation matrix, the matrix PA will have an LU decomposition. For more information, please see the MATLAB documentation for LU matrix factorization Script 1 XI need help with all of this, I feel I'm not doing this right. Save *Create the coefficient matrix A and and the column matrix b of constants. A [1 2 3; 3 -1; 2-11] 6b - [9; 3; 8] Reset MATLAB Documentation Use the lu() command to find the LU decomposition of A, storing the lower and upper matrices Xin L and U, respectively. 10 [L, U] - lu(A) 11 12 XSolve the system of linear equations Ax-b using the LU decomposition. Store the intermediary 13 %solution in y. Store the solution for x in x1. 14 y L\b 15 x1- U\b 16 %Check that the solution x1 matches that found by directly using the backslash operator to solve 17 %the system Ax-b. Use the backslash operator to solve Ax-b in one step, storing the solution in x2. 18 x2- Uly 19
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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