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Spring 09 WS 19

# Spring 09 WS 19 - ENG EK 127 Worksheet 19 Name_Julian Hart...

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ENG EK 127 Worksheet 19 Name: ________Julian Hart_______________________________________________ Instructions: The minimum set is Problems 1 – 6. Problem 1 is to be done on paper (although you can and should use MATLAB to check your work). Note that the functions in problems 3-8 all return values; they do not print anything. You should include in your solution to this worksheet examples of calling these functions. 1. For the following matrices A, B, and C: A B C 2 3 4 1 0 6 3 6 5 1 3 1 2 2 1 4 5 2 3 a) Which are symmetric? B b) For all square matrices, give their trace: A – 3 B - 7 c) Give the result of 3*A: 3 12 9 6 d) Give the result of A*C: 19 6 13 17 8 19

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e) Are there any other matrix multiplications that can be performed? If so, list: C * B
2. Use reshape to create the matrix 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 by first creating a vector 1:16. >> reshape(myvec, 4,4)’ 3.

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Spring 09 WS 19 - ENG EK 127 Worksheet 19 Name_Julian Hart...

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