books.google.com - I used to think math was no fun'Cause I couldn't see how it was doneNow Euler's my heroFor I now see why zeroEquals e[pi] i+1 --Paul Nahin, electrical engineer In the mid-eighteenth century, Swiss-born mathematician Leonhard Euler developed a formula so innovative and complex that it continues to...http://books.google.com/books/about/Dr_Euler_s_Fabulous_Formula.html?id=GvSg5HQ7WPcC&utm_source=gb-gplus-shareDr. Euler's Fabulous Formula