Stage: 5 Challenge Level: 
This interactivity will lead you into an exploration of
permutations and combination.
For help on how to use it, click on the library tab and select help.
Click for Full Screen Version
For help on how to use it, click on the library tab and select help.
Click for Full Screen Version
This text is usually replaced by the Flash movie.
Modulus arithmetic. Groups. Small software. Structures of simple finite groups. Symmetry. Regular polygons. Reflections. Rotations. Invariance properties. Permutations.
Published May 2009,March 2005.
Copyright © 2007. University of Cambridge. All rights reserved.
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email: nrich@damtp.cam.ac.uk