Experiment with the random commands to generate 10
Chapter , Problem 1E(choose chapter or problem)
Problem 1E
Experiment with the random commands to generate 10 different homogeneous (in × n) systems with integer entries, the entries between − 20 and 20. Make sure at least 6 of your systems have n larger than m.
Solve the system by first using the rref command. Then use pencil and paper to find the form of the solutions. What can you conclude if n is larger than m? Compare to Theorem 4. (Note: You might notice that both you and a classmate get the same matrix
when you type r a n d (2 ,3). This is because MATLAB has a default system of selecting the seed for its random number generator. To personalize the rand command type
≫ rand ('seed ', 'your first ame your lastname ')
You only need to type this once before you use the first r a n d command. Do not forget the single quotations. (Of course, in practice you can type anything between the second set of single quotations.)
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