User talk:197.156.71.84

June 2018
Hello, I'm Ivgnyl. An edit that you recently made to Dirac delta function seemed to be a test and has been removed. If you want more practice editing, please use the sandbox. If you think a mistake was made, or if you have any questions, you can leave me a message on my talk page. Thanks! Ivgnyl (talk) 15:21, 1 June 2018 (UTC)
 * If this is a shared IP address, and you did not make the edits, consider creating an account for yourself or logging in with an existing account so you can avoid further irrelevant notices.

Please refrain from making unconstructive edits to Wikipedia, as you did with this edit to Dirac delta function. 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. Tillerh11 (talk) 15:21, 1 June 2018 (UTC)

April 2022
Please refrain from making unconstructive edits to Wikipedia, as you did at Dynamics (mechanics). Your edits appear to constitute vandalism and have been reverted. If you would like to experiment, please use the sandbox. Repeated vandalism may result in the loss of editing privileges. Thank you. DVdm (talk) 14:45, 18 April 2022 (UTC)