Former Update 02/ 03/ 2006
Last Update 13/ 10/2009
in English/ in Esperanto/ in Portuguese
This game presents in the figure below a black cube in perspective in
a cartesian referential and a symmetry element either a tetrad
rotation axis or a triad
axis or a binary axis
or a mirror plane
or the inversion center
in red and one of the six Miller
indices of the cube faces in red. The game comes to end after a click
on all the Miller indices (at least one and maximum of three) defining
planes obtained by the operation of the given symmetry element on the plane
with the Miller indices in red.
Each correct choice is scored by a funny face and bad choice with a
bad face. Finally the starting time and solution time is displayed.
The former Java Applet®, osi7, was replaced by osi7a, which enables
the former orientation of the cube and the new projection obtained with
the rotation resource after a click on button 2006.
Please send your comments.
Table of subjects.