Autoreference and magnetization in dynamic geometry

III.1 Introduction to the magnetism in CaRMetal

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Yves Martin - University of La Réunion

Laboratory of Computer Science and Mathematics (LIM, EA 2525)

ICTMT9, Metz, July 8, 2009

First application :

CarMetal offers multiple magnetizations with algebraic parameters that allows a new use of dynamic geometry and provides another opportunity to get rid of determinism if necessary.

The first basic use of magnetization of a point on several items is the extension of ‘points on objects' to 'points on figures’.

M' is the image of M with respect to line d. The trace of M gives the image of the figure after a reflection w.r.t the given line since M can now go all over the original figure.

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