User talk:Sniffsniffhuray

February 2013
Hello, I'm Vacation9. I wanted to let you know that I undid one of your recent contributions, such as the one you made to this edit to Displacement (vector), because it didn’t appear constructive to me. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks, Vaca  tion  9  23:47, 18 February 2013 (UTC)