二項式
↑ Weisstein, Eric W. "Binomial". mathworld.wolfram.com (英語).
↑ Sturmfels, Bernd (2002). “Solving Systems of Polynomial Equations”. CBMS Regional Conference Series in Mathematics (Conference Board of the Mathematical Sciences) (97): 62. https://books.google.com/books?id=N9c8bWxkz9gC 2014年3月21日閲覧。.