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Section 8.4 #29 | Section 8.4 #29 | ||
Does anybody have any thoughts about the solution to the second part of number 29 and the proof for #30? For the positive definite case and negative definite case, finding the determinate seems sufficient. I'm not sure how to show the indefinite case. | Does anybody have any thoughts about the solution to the second part of number 29 and the proof for #30? For the positive definite case and negative definite case, finding the determinate seems sufficient. I'm not sure how to show the indefinite case. | ||
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+ | Problem 18 on page 146 | ||
+ | Do I have the time rate of change equations correct: | ||
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+ | Y1' = 48/100Y1 + 16/400Y2 - 64/100Y1 | ||
+ | Y2' = 64/100Y1 - 64/100Y2 | ||
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+ | I am not sure on the 48/100Y1 portion of equation 1. | ||
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Revision as of 06:46, 17 September 2010
Homework 4 work area
Collaborate on HWK 4 here.
Section 8.4 #29 Does anybody have any thoughts about the solution to the second part of number 29 and the proof for #30? For the positive definite case and negative definite case, finding the determinate seems sufficient. I'm not sure how to show the indefinite case.
Problem 18 on page 146
Do I have the time rate of change equations correct:
Y1' = 48/100Y1 + 16/400Y2 - 64/100Y1 Y2' = 64/100Y1 - 64/100Y2
I am not sure on the 48/100Y1 portion of equation 1.