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Elementary Linear Algebra 6e - Larson, Edwards, Falvo - Chapter 1 MATLAB - Systems of Linear Equatio

# Elementary Linear Algebra 6e - Larson, Edwards, Falvo - Chapter 1 MATLAB - Systems of Linear Equatio

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CHAPTER 1 MATLAB EXERCISES 1–1 CHAPTER 1 MATLAB EXERCISES 1. Consider the linear system of Example 7 in Section 1.2. (a) Use the MATLAB command rref to solve the system. (b) Let A be the coefficient matrix of the system, and B the right-hand side. Use the MATLAB command A\B to solve the system. 2. Enter the matrix Use the MATLAB command rref(A) to find the reduced row-echelon form of A . What is the solution to the linear system represented by the augmented matrix A ? 3. Solve the linear system You can display more significant digits of the answer by typing format long before solving the system. Return to the standard format by typing format short. 4. Use the MATLAB command rref(A) to determine which of the following matrices are row- equivalent to (a) (b) (c) 5. Let A be the coefficient matrix, and B the right-hand side of the linear system of equations Enter the matrices A and B , and form the augmented matrix C for this system by using the MATLAB command Solve the system using rref . C [ A B ] .

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