X-Git-Url: http://git.hungrycats.org/cgi-bin/gitweb.cgi?p=xscreensaver;a=blobdiff_plain;f=hacks%2Fconfig%2Fpolytopes.xml;h=204e1b96586249b6f5fa2bf1169973cf25f196cb;hp=3f24a07cd71a7d335ce8a36b3424239587684b3e;hb=f8cf5ac7b2f53510f80a0eaf286a25298be17bfe;hpb=ec8d2b32b63649e6d32bdfb306eda062769af823 diff --git a/hacks/config/polytopes.xml b/hacks/config/polytopes.xml index 3f24a07c..204e1b96 100644 --- a/hacks/config/polytopes.xml +++ b/hacks/config/polytopes.xml @@ -1,6 +1,6 @@ - + @@ -94,12 +94,14 @@ <_description> This shows one of the six regular 4D polytopes rotating in 4D. + Inspired by H.S.M Coxeter's book "Regular Polytopes", 3rd Edition, Dover Publications, Inc., 1973, and Thomas Banchoff's book "Beyond the 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 Written by Carsten Steger; 2003.