Third Dimension: Geometry, Computer Graphics, and Higher Dimensions",
Scientific American Library, 1990.
-http://en.wikipedia.org/wiki/Hypercube
-http://en.wikipedia.org/wiki/Tesseract
-http://en.wikipedia.org/wiki/Regular_polytope
+https://en.wikipedia.org/wiki/Hypercube
+https://en.wikipedia.org/wiki/Tesseract
+https://en.wikipedia.org/wiki/Regular_polytope
Written by Carsten Steger; 2003.
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