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Unformatted text preview: For the upper boundary I chose the number 3.88 to indicate that the number was still negative, and then I choose a number larger than 3.88 to prove that the roots are positive. This helped me show that the poles are in the RHP when a number is above 3.88. Then I graphed it with Matlab to reiterate this fact. The graph is shown below. >> num=[1 5 10 10 5 3.88]; >> roots(num) ans =-2.2356 -1.3818 + 1.1751i-1.3818 - 1.1751i-0.0004 + 0.7263i-0.0004 - 0.7263i >> num=[1 5 10 10 5 4]; >> roots(num) ans =-2.2457 -1.3850 + 1.1848i-1.3850 - 1.1848i 0.0078 + 0.7322i 0.0078 - 0.7322i...
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- Fall '10