How should I cite material from MathWorld?
If you excerpt text or graphics from this site for inclusion in a written or online report, you should follow normal protocols for proper citation. An example citation for this site would consist of something like the following: Weisstein, Eric W. “Fibonacci Numbers.” From MathWorld–A Wolfram Web Resource. http://mathworld.wolfram.com/FibonacciNumber.html Other reproduction of material on this site for publication or redistribution is governed by applicable copyright restrictions. For additional questions or for permission to reproduce material for commercial purposes, please send your request via the web form.