Xref: utzoo comp.sys.mac:25140 sci.math:5357 sci.math.symbolic:524
Path: utzoo!attcan!uunet!lll-winken!snll-arpagw!paolucci
From: paolucci@snll-arpagw.UUCP (Sam Paolucci)
Newsgroups: comp.sys.mac,sci.math,sci.math.symbolic
Subject: Re: MATHEMATICA on the MAC II -- Summary
Message-ID: <33@snll-arpagw.UUCP>
Date: 14 Jan 89 03:11:26 GMT
References: <66958GFX@PSUVM> <67374GFX@PSUVM>
Reply-To: paolucci@snll-arpagw.UUCP (Sam Paolucci)
Organization: Sandia National Labs, Livermore, CA
Lines: 38

In article <67374GFX@PSUVM> GFX@PSUVM.BITNET writes:
->
->The general impression I got is that the net-users think the MacSyma
->is mathematically more sophisticated than Mathematica, that Mathematica
->has superior graphics capability (and better interface).  But the bottom
->line seems to be the machine.  Both softwares are memory hogs.  I also
->received some comments on a soon-to-be-released symbolic processor "Maple"
->developed by U. of Waterloo.  Thanks to those who send infos.  I would
->appreciate any additional commens and will update the summary if needed.
->
->Just in case that might be of interest to anyone: my question was prompted
->by the remark made by a prof of optimal control that MacSyma was unable to
->solve even relatively simple differential equations.  The specifics:
->
->                  x'(t) = (N - x(t)) * (a + bx(t))
->
->From what I read, I am inclined to think that symbolic processors have
->a rather limited expertise...  Stephane

..(stuff deleted)..

I don't know about Macsyma, but Maple on my Amiga 2000 gave the answer
to the above ODE:

	ln ( N - x(t) ) - ln ( a + b x(t) )
	----------------------------------- + t = C
		    N b + a

in about 3 seconds.  I believe that a version of Maple is soon to be
available on a MAC II.  It is certainly worth checking it out.

Note: I have no connection with the University of Waterloo, I'm just
a satisfied customer.
-- 
					-+= SAM =+-
"the best things in life are free"

				ARPA: paolucci@snll-arpagw.llnl.gov