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From: mmjones(--nospam--at) (Michael Jones)
To: seaoc(--nospam--at)
Date: Tue, 18 Jun 1996 03:15:28 -0500 (CDT)
Subject: [SEAOC] Software question

As part of Wolfram Research's continuing efforts to enhance the utility of
Mathematica in engineering practice and education, I have been given the task
of understanding as much as possible about technical software usage in the
engineering community. As a result, I'd very much like to know whether you
currently use Mathematica, and if not, what kind of software, if any, you
use for calculation, analysis, modeling or visualization. I would also be
very grateful for any suggestions you might have about Mathematica and
its role in the engineering community.

Thank you very much for your help.

-- Michael Jones (mmjones(--nospam--at)

P.S.  If you haven't seen the latest information on Mathematica, you might
want to check out



From: pepper(--nospam--at) (John Pepper)
To: seaoc(--nospam--at)
Date: Tue, 18 Jun 1996 16:45:49 -0400 (EDT)
Subject: [SEAOC] Re: Gyp. board shear walls in LA

As a young engineer, who didn't know any better, I one time attempted to use
gypsum board in my calcualtions for the wind resisting system of a 6 stroy 
condominum. I very carfully subtracted about 15 psi for the boards
contribution to the overall lateral resistance of the structure.

My then boss, and later partner told me someting have never forgotten: "Never
confuse stiffness with strenth."

He explained the the gypsum walls would fail long before the reinforced
masonry infilled walls shear walls and the somewhat (but not very) moment
resistant flat plate/column system and therefore would not be avliable at
the ultimate level for strength.

He further explainted that the frame would not be worth much ei