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Re: parabola through 4 points
Posted:
Dec 5, 1997 5:52 AM
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I received this in my email this week. It explores, draws together and resolves some
of the issues raised in this discussion group under the above thread.
Subject: parabole et 4 points
Date: Wed, 03 Dec 1997 15:43:34 +0100
From: Bernard Geneves <Bernard.Geneves@imag.fr>
To: cabri-forum@imag.fr
Synthèse des réponses reçues :
en général, par quatre points, il passe deux paraboles.
le site d'AbraCadabri contient toute une chronique consacrée àcette
question,
HREF="http://www-cabri.imag.fr/abracadabri/RubConiques/Projectif/ProjectifGene.html"
Paraboles passant par 4 points</A>avec une approche expérimentale,
suivie d'une construction des paraboles due ÃÂ Michel Guillerault
(Michel.Guillerault@imag.fr).
Bernard Geneves
Projet IMAG Cabri-geometre Fax : +33 (0)4 7657 5057
Laboratoire Leibniz - IMAG
46 avenue Felix Viallet Tel : +33 (0)4 7657 5056
38000 Grenoble FRANCE Adel: Bernard.Geneves@imag.fr
Centre National de la Recherche Scientifique
Institut National Polytechnique de Grenoble Universite Joseph Fourier
___________________________________________________________________________
I found the exposition very helpful, especially in achieving what I had originally
set out to do: Draw a complete parabola from its intercepts.
Regards,
Jon Roberts.
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