Mathematica, Packs for Mechanical
Engineers 
and the elastic torsion problem
Cetin Cetinkaya
Wolfram Research, Inc., Champaign,
Illinois
email: cetin@wri.com
Grant Keady
Mathematics Department, University
of Western Australia
email: keady@maths.uwa.edu.au
Arrigo Triulzi
School of Mathematical Sciences,
Queen Mary and Westfield College,
University of London
email: arrigo@maths.qmw.ac.uk
Abstract
Mathematica
does nearly all the ordinary engineering
mathematics which working engineers
need. Mathematica has always
done more than Computer Algebra
(CA). Numerics, graphics, and userinterface
matters have been smoothly integrated
with the CA. Mathematica
3 adds mathematical word processing
and hyperlinks. This opens the way
to truly impressive, useful `electronic
books', `interactive engineering
handbooks', etc..
The ratio of engineering users
of Mathematica to academic mathematician
users is already greater than one,
and rapidly increasing. The main
part of the paper reports on a Pack
 suite of useful code  for Mechanical
Engineers. The Pack
 an `interactive engineering handbook'
 described in the paper is incontrovertibly
useful for engineers, but, as this
is a conference for mathematicians,
the thrust of the paper concerns
the relevance of the Pack for applied
mathematicians  for our teaching
of engineering mathematics and for
our research. To illustrate matters
concerning the latter, the elastic
torsion problem is used as an example,
and some developments from earlier
work are reported.
Full Paper in PS
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