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From: mental@bluemoon.uucp (Sean Kellner)
Newsgroups: comp.sys.handhelds
Subject: Symbolic Integration
Message-ID: <o0wPy1w163w@bluemoon.uucp>
Date: 12 Mar 91 22:49:47 GMT
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 For the HP48sx of course....
 I thought that the 48sx could do symbolic integration but either its 
really bad at it or I am doing something wrong.  Since I am still in high 
school, I figured it should be able to do any of them I could. If I 
understand correctly, I should type 0 and I for the limits of integration 
(I has no value, and I can use any variable not assigned to a value, 
right??) and then hit eval and it goes to work right?? Well I tried:
(S stands for the integral sign)
   'S(0,I,(X+3)/(X^2+6*X+7),X)'
in order to find the symbolic integral of:
         
                   X+3
                _________  dX
                X^2+6*X+7
 First, is this the correct way to get at the symbolic integral??
After evaling I get:
 'S(0,I,3/(X^2+6*X+7)+X/(X^2+6*X+7),X)'
Reapeating EVAL only switches the position of the 3/(X^2... and X/(X^2...
Close but not quite it. Still needs more work.
 I know this may be a tough one for a calculator but it has choked on 
easier ones too, the derivitive works great tho!!
   Thanks for any help
          Sean
   mental%bluemoon@nstar.rn.com