SymmetryDate: 04/29/2001 at 10:15:00 From: Gina Pitaluga Subject: Symmetry Help! What's symmetry? Date: 05/01/2001 at 09:37:27 From: Doctor Sarah Subject: Re: Symmetry Hi Gina - Great question! There are four types of symmetry in the plane, and a pattern is symmetric if there is at least one symmetry (rotation, translation, reflection, glide reflection) that leaves the pattern unchanged. For illustrations, you can look at this Web page: Symmetry - Suzanne Alejandre and Susan Addington http://mathforum.org/sum95/suzanne/symsusan.html There are many sites on the Web that will show you good examples of symmetry and tell you about them, and pictures really help. Here is one good place to start looking and reading: Investigating Patterns: Symmetry and Tessellations - Jill Britton Lots of links to pages with good pictures! http://britton.disted.camosun.bc.ca/jbsymteslk.htm For lots of sites about symmetry, see the Math Forum's Internet Mathematics Library: http://mathforum.org/library/topics/sym_tess/ I hope this helps. - Doctor Sarah, The Math Forum http://mathforum.org/dr.math/ |
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