Algebra-cadabra! Here's a classic magic trick, and the mathematical secret behind it http://t.co/GxdRAEnlKQ -------------- sonraki bölüm -------------- Bir HTML eklentisi temizlendi... URL: <http://yunus.listweb.bilkent.edu.tr/cgi-bin/mailman/private/turkmath/attachments/20140210/0df81f56/attachment.html>