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Posted December 16, 2005
i am tired of the game publishers play of releasing a new edition every year or so of basically the same book, and jacking up the price, while letting the old cheap ones go out of existence, while the professors cooperate by requiring the new one. mathematically and pedagogically there is often no difference, except the newer ones may be dumbed down more, which is arguably harmful. this is a fine little treatment of the elementary aspects of o.d.e. with clear full proofs and examples, in the same form it took early on in its life. we used this at harvard in an undergrad course in 1963. it only lacks the phase plane theory, for the qualitative analysis of equations that cannot be solved explicitly, and that I like to present. my solution may be to combine this clean treatment of the theory of easily solved equations, with another reasonable but high quality dover book, like hurewicz or waltman, for the qualitative theory.
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