User talk:78.86.2.207

January 2011
Welcome to Wikipedia. The recent edit you made to Geometric progression has been reverted, as it appears to be unconstructive. Use the sandbox for testing; if you believe the edit was constructive, ensure that you provide an informative edit summary. You may also wish to read the introduction to editing. Thank you.  Nascar  1996   17:18, 12 January 2011 (UTC)