User talk:39.41.4.123

December 2011
Welcome and thank you for experimenting with Wikipedia. Your test on the page Harmonic function worked, and it has been reverted or removed. However, if you would like to experiment further, please use the sandbox instead. Please take a look at the welcome page to learn more about contributing to this encyclopedia. Thank you. Mark91  it's my world   17:23, 1 December 2011 (UTC)