Ethiopian multiplication – NCETM

http://www.ncetm.org.uk/blogs/3064

Ethiopian multiplication

skalibs: the selfpipe library interface

http://www.skarnet.org/software/skalibs/selfpipe.html

The selfpipe library interface

http://gallery.photo.net/photo/5096456-md.jpg

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La Cina fotocopia il mondo – Corriere della Sera

http://www.corriere.it/cultura/09_agosto_28/cina_fotocopia_torno_mondo_17b8df9c-939a-11de-8445-00144f02aabc.shtml

La Cina fotocopia il mondo
Presto la più grande raccolta mai esistita sarà disponibile nelle biblioteche La speranza di Li Chun: riavremo i 50 mila volumi distrutti dal terremoto

http://www.ilciclostile.com/public/Great_Minds.jpg

Never Mind

http://img132.imageshack.us/img132/4967/outrageous.jpg

Group Theory, permutations formula

http://www.physicsforums.com/showthread.php?t=228280

Group Theory, permutations formula

ABSTRACT ALGEBRA ON LINE: Groups

http://www.math.niu.edu/~beachy/aaol/groups.html

GROUPS

Permutation group: Definition from Answers.com

http://www.answers.com/topic/permutation-group

Permutation group