A year or two (or three?) ago, Gerd Kortemeyer provided a subroutine for exactly the purpose you need. This led to the implementation of a new problem type, which is the first option in the section
Algebraic Response Problems ->Custom Response comparing Equations using Computer Algebra System when creating a problem in Authoring space. I have written several problems using this format, with various tweaks. Some examples are /res/tccfl/abertr/Precalculus/Conics/ConicSection01.problem /res/tccfl/abertr/Precalculus/Conics/ConicSection02.problem /res/tccfl/abertr/Precalculus/Conics/ConicSection03.problem /priv/tccfl/abertr/Precalculus/Conics/Ellipse3.problem There are several others in that same directory. Feel free to browse and borrow all the code you need. The source is open on all my problems. Enjoy! Rex Abert Associate Professor of Mathematics Tallahassee Community College ________________________________________ From: lon-capa-users-boun...@mail.lon-capa.org [lon-capa-users-boun...@mail.lon-capa.org] on behalf of Peter Dencker [denc...@math.uni-luebeck.de] Sent: Monday, March 9, 2015 5:40 PM To: Discussion list for LON-CAPA users Subject: Re: [LON-CAPA-users] Implicit Answer Hello. The use of customresponse makes it possible to apply the whole capability of Perl for the analysis of the submissions. Could you give a simple concrete example of a problem? (What submissions should be regarded as correct?) Peter Am 03/09/2015 um 05:42 PM schrieb Bayu Irjanto: > Hi, > > I have been trying to author a problem that that uses an implicit answer. > how can loncapa accepts an answer that looks like this ? > > y^2-y=x^2+2 > > I always get an error when I try to author a problem that has an equal sign > '=' as a part of the answer.I think the response cannot take '=' equal sign > as a part of the answer. > Is there a way around this? > > > Thanks! > > > > _______________________________________________ > LON-CAPA-users mailing list > LON-CAPA-users@mail.lon-capa.org > http://mail.lon-capa.org/mailman/listinfo/lon-capa-users > -- Dr. Peter Dencker wissenschaftl. Mitarbeiter UNIVERSITÄT ZU LÜBECK INSTITUT FÜR MATHEMATIK Ratzeburger Allee 160 23562 Lübeck Tel +49 451 500 4254 Fax +49 451 500 3373 denc...@math.uni-luebeck.de www.math.uni-luebeck.de _______________________________________________ LON-CAPA-users mailing list LON-CAPA-users@mail.lon-capa.org http://mail.lon-capa.org/mailman/listinfo/lon-capa-users _______________________________________________ LON-CAPA-users mailing list LON-CAPA-users@mail.lon-capa.org http://mail.lon-capa.org/mailman/listinfo/lon-capa-users
