Electronic Proceedings of the Twenty-third Annual International Conference on Technology in Collegiate Mathematics

Denver, Colorado, March 17-20, 2011

Paper C007

This is an electronic reprint, reproduced by permission of Pearson Education Inc. Originally appeared in the Proceedings of the Twenty-third Annual International Conference on Technology in Collegiate Mathematics, ISBN 0-321-68984-4, Copyright (C) 2012 by Pearson Education, Inc.


Moving Results in Plane Geometry and Complex Analysis Via GeoGebra

Chris Frenzen


Naval Postgraduate School

Click to access this paper: paper.pdf

ABSTRACT

Euclid 'proved' SAS for triangles, moving one to coincide with the other. Still, it took 2000 years to introduce motion into geometry. With GeoGebra, moving figures bring clarity, insight into proofs, and excitement to geometry and complex analysis. Examples discussed include plane isometries and inversion in the complex plane.

Keyword(s): GeoGebra, geometry, complex variables