Macsyma and your de

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Article #36561

#36561

From: Ralph Martin
Date: Tue, 17 Jan 1989 15:25

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Your prof of control doesnt have a clue. I asked macsyma to solve


                            dx
(d2)                        -- = (n - x) (b x + a)
                            dt

and it came up with the solution


                      log(b x + a) - log(x - n)
(d3)                  ------------------------- = t + %c
                               b n + a

where %c is a constant.

I dunno whether Mathematica can do this, I'm still waiting to get it.

Ralph
-- 
Dr Ralph Martin
Department of Computing Mathematics
University of Wales College of Cardiff
PO Box 916
Cardiff
CF2 4YN
United Kingdom

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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!mcvax!ukc!reading!cf-cm!ralph
From: ralph@computing-maths.cardiff.ac.uk (Ralph Martin)
Newsgroups: comp.sys.mac
Subject: Macsyma and your de
Message-ID: <608@cf-cm.UUCP>
Date: 17 Jan 89 15:25:18 GMT
Organization: University of Wales College of Cardiff, Cardiff, WALES, UK.
Lines: 27