Ron Eglash : The fractals at the heart of African designs | TED Talk

un peu hors-sujet, mais en complément, une collection d’images ici, l’afrique et les algorythmes (plus ou moins (il ya aussi des cartes polynésiennes, mais pas mal de #dessins_dans_le_sable aussi) : ►http://grillesetschemas.blogspot.fr/2014/11/143-special-ethnomathematique.html

des exemples :

http://1.bp.blogspot.com/-SKYrAPDwhfQ/VFu483mowOI/AAAAAAAAKG0/TfhwjQwMEDI/s1600/0bb335941a2ba4b0e522090057a951a4.jpg http://3.bp.blogspot.com/-VMuGPGqCB6o/VFu47iCEY8I/AAAAAAAAKGI/lPTYFGjsEAQ/s1600/fig13.jpg http://4.bp.blogspot.com/-Hi46ZxLq778/VFu48Qu5BrI/AAAAAAAAKGU/y_84u_Sr_S0/s1600/fig16.jpg http://2.bp.blogspot.com/-YcEe6fOZy1A/VFu5FAIAPUI/AAAAAAAAKHo/kRZJaZJr2oU/s1600/basotho-house.jpg http://4.bp.blogspot.com/-fAmJeOAdcII/VFu5HOrTyJI/AAAAAAAAKHw/30YaG2hTIDM/s1600/border2.jpg http://4.bp.blogspot.com/-MBMWGCY0v9Y/VFu5JIDeFfI/AAAAAAAAKII/T5Jqn3ewEb4/s1600/house_corner2.jpg http://4.bp.blogspot.com/-lTmX8nLAPQ0/VFu5LhnMjLI/AAAAAAAAKI0/D0CcbnrPy2k/s1600/intro_gallery4.jpg http://2.bp.blogspot.com/-k0_JwHTR09A/VFu5OW1mq8I/AAAAAAAAKJo/1HBPilwkWgY/s1600/symmetry_gallery4.jpg http://4.bp.blogspot.com/-m1Buh1T92Ds/VFu5lCPpWzI/AAAAAAAAKMY/g15X9PLL0so/s1600/14785499055_4855934c36_n.jpg http://2.bp.blogspot.com/-BWHOOzJ_6fM/VFu6ZW-aCtI/AAAAAAAAKVA/4zVFvxCDcc0/s1600/e5f40eaa286fbe65c5b81627e09fe09.jpg http://4.bp.blogspot.com/-RkbaGwWv5K0/VFu6UR92G7I/AAAAAAAAKT0/8x2C9AZLYBg/s1600/Lusona-Hunter.gif