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- From: rp@llex.ll.mit.edu ( Richard Pavelle)
- Subject: Query about solution of an ODE at a point
- Message-ID: <1992Oct16.102521.22468@ll.mit.edu>
- Originator: rp@llex
- Sender: news@ll.mit.edu
- Organization: MIT Lincoln Laboratory
- Date: Fri, 16 Oct 92 10:25:21 GMT
- Lines: 24
-
-
- I have a differential equation shown below where the subscripts are
- derivatives. C, M, R and tf are constants. There are initial
- conditions such that Y(0) and its derivatives are constant.
-
- The equation can be integrated once because the lhs is a perfect
- differential but that may not be relevant to my query.
-
- Y M Y
- tt t M Y
- Y + ---- + ------ + --------- = R
- ttt C tf - t 2
- (tf - t)
-
- I am told there is a technique for solving an equation such as
- this at a particular point, namely at t = tf, without actually
- solving the differential equation. I would like to learn about
- this technique and ask whether anyone can enlighten me. The
- technique may rely upon Laplace transforms and may only be
- applicable when M is an integer.
-
- Many thanks.
-
-
-