I encourage people to use these materials, share them, learn from them, and tweak them to suit your individual needs, thereby promoting the use of MathJax, MathML, and JSXGraph to display mathematics and graphics on the web, subject to the following conditions:

These materials are protected under the Creative Commons Attribution-NonCommerical 2.5 License . Under the terms of this license, you must attribute the work in the manner specified by the author (Dr. Carol JVF Burns), and those instructions appear below:

• Any derivative of these materials must clearly display a link to the author's homepage:   https://www.onemathematicalcat.org
Furthermore:
• Users of these materials are encouraged (but not required) to notify me at:

OneMathematicalCat (the at sign) outlook.com

Firstly, I'm curious as to who is using the materials and in what way. If you include your location in the world, that would be great.

Secondly, I benefit tremendously from constructive comments on what works for you and what doesn't work for you.

Thirdly, I love to get email that's not junk mail!

• The use of these materials must be non-profit. In particular, materials may not be loaded into any frame or used in any way where profit can be derived (e.g., by ads, sales, subscriptions, or any similar manner).

If you wish to use the materials for profit of any kind, then written permission must be obtained from the author:

OneMathematicalCat (the at sign) outlook.com

• It would be greatly appreciated if users of these materials would make a donation to help support this site. Many thanks.