The figure above shows part of the Cayley surface.
This surface is a real model of the dual variety of the Steiner surface.
to be continued ...
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I made this page by substituting my own data in a Geometry Center webpage.
Prof. Joel Roberts
School of Mathematics
University of Minnesota
Minneapolis, MN 55455
USA
Office: 351 Vincent Hall
Phone: (612) 625-1076
Dept. FAX: (612) 626-2017
e-mail: roberts@math.umn.edu
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http://www.math.umn.edu/~roberts