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# a7 - When nished print out your diary le and submit it with...

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Math 136 Assignment 7 Due: Wednesday, Mar 18th Section 3-5 Exercises B1. Matrices A and E . B3. a), b) i) ii) D1. D4. D5. Section 3-6 Exercises B1. a), b), c) B4. Additional Problems E1. Find an LU-factorization of A = 2 3 4 4 5 10 4 8 2 , and use it to solve A x = 6 16 2 using a forward substitution followed by a back substituion. MATLAB question is on the next page.

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Use MATLAB to complete the following questions. Use the diary feature to record your work.
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Unformatted text preview: When nished, print out your diary le and submit it with the rest of your assignment. Inverses and LU-Decomposition (a) Complete C1 in Section 3-5 of the textbook. Verify that ( A-1 )-1 = A . (b) Find the LU-decomposition of A = 2-6-2 4-1 3 3 2-1 3 7 10 using the MATLAB command lu . Hint: Type help lu at the prompt and read the documentation. 2...
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