(Note: this is a copy of part of the original Math Delights site. The complete site is at mathdelights.org.)
Math Delights is licensed under a Creative
Commons License to give you more rights than copyright allows.
You are free to
Under the following conditions:
Attribution. You must give Nancy Blachman credit and link to or reference the original version, or Math Delights' home page, MathDelights.org.
Noncommercial. You may not use this work for commercial purposes.
For any reuse or distribution, you must make clear to others the license terms of this work. Any of these conditions can be waived if you get permission from the author.
Your fair use and other rights are in no way affected by this license.
You can find a summary of the Legal Code (the full license) on the web at creativecommons.org/licenses/by-nc/2.0/legalcode.