User talk:MathProfessor69

October 2015
Hello, I'm DVdm. I noticed that you made a change to an article, Calculus, but you didn't provide a reliable source. It's been removed and archived in the page history for now, but if you'd like to include a citation and re-add it, please do so! If you need guidance on referencing, please see the referencing for beginners tutorial, or if you think I made a mistake, you can leave me a message on my talk page. Thank you. - DVdm (talk) 15:30, 27 October 2015 (UTC)

Hello, I'm DVdm. I wanted to let you know that I undid one or more of your recent contributions to Convection oven because it did not appear constructive. If you would like to experiment, please use the sandbox. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks. - DVdm (talk) 15:32, 27 October 2015 (UTC)

Please refrain from making unconstructive edits to Wikipedia. Your edits appear to constitute vandalism and have been reverted or removed. If you would like to experiment, please use the sandbox. Repeated vandalism can result in the loss of editing privileges. Thank you. Mean as custard (talk) 14:55, 27 October 2015 (UTC)

Please stop your disruptive editing. If you continue to vandalize Wikipedia, as you did to List of screw drives with this edit, you may be blocked from editing. DVdm (talk) 15:33, 27 October 2015 (UTC)