Recent content by forkandwait

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    Classical Anybody using Morin's Problems and Solutions in Intro Mech?

    Hi all, I have spent the last year working through Morin's Problems and Solutions in Introductory Mechanics, and was wondering if anybody else has experience with this book? Really, I would like to talk through specific problems via one of the forums here, but I don't want to bother if nobody...
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    Anybody else dependent on a computer algebra system (CAS)?

    HI all, I am working my way slowly through some classical mechanics books, and I don't think I could function without my CAS (most often my trusty HP 50g, sometimes Giac/Xcas). I have never been very good at pages of algebra, often dropping negatives or whatever, bad enough that working...
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    Feedback control via ODE variable coefficients?

    If one has a simple variable coefficient process like y'(t) = r(t)*y(t), is there a way to control it to a set point by feedback hitting the variable coefficients in r(t)? I am interested in feedback control of population processes. y'(t) = r*y(t) is simple proportional growth with a...
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