[LON-CAPA-users] Does formula response support inequalities?
Itay Furman
itayf at nospammail.net
Sat Mar 29 11:37:36 EDT 2014
(Originally sent with the wrong sender address. My apologies in
advance if double-posting has occurred.)
Hi,
Consider a certain physical in which stable equilibrium exists if
2*k*l^2 - mgL > 0,
where k,l,m,g, and L, are parameters.
I would like to challenge my students with a problem for which the
answer would be the above symbolic inequality.
However, as I understand I _cannot_ use formula response for that purpose; is this correct? or did I miss something?
[
I believe I could use formula response to challenge the students by
reformulating the question like this
"A stable equilibrium would exist if the potential energy, mgL, be
smaller than:"
and match the students' response against the expression "2*k*l^2".
But I think that asking them to provide the full inequality is preferred.
]
Thanks in advance.
Itay Furman, Ph.D.
--
The Jerusalem College of engineering
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