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January 2020

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Information icon Hello, I'm MrOllie. I noticed that you added or changed content in an article, 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. You can have a look at the tutorial on citing sources, or if you think I made a mistake, you can leave me a message on my talk page. Thank you. MrOllie (talk) 12:39, 18 January 2020 (UTC)[reply]

Achernog, you are invited to the Teahouse!

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Teahouse logo

Hi Achernog! Thanks for contributing to Wikipedia.
Be our guest at the Teahouse! The Teahouse is a friendly space where new editors can ask questions about contributing to Wikipedia and get help from experienced editors like Nick Moyes (talk).

We hope to see you there!

Delivered by HostBot on behalf of the Teahouse hosts

16:08, 18 January 2020 (UTC)

December 2020

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Information icon Please do not add or change content, as you did at Square root of 2 and Square root of 3, without citing a reliable source. Please review the guidelines at Wikipedia:Citing sources and take this opportunity to add references to the article. Thank you. - DVdm (talk) 11:02, 2 December 2020 (UTC)[reply]

Warning icon Please stop your disruptive editing. If you continue to add unsourced or poorly sourced content, as you did at Pell number, you may be blocked from editing. - DVdm (talk) 11:14, 2 December 2020 (UTC)[reply]

Recent edit reversion

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In this edit here, I reverted some information that appears to be a violation of our copyright policy.

I provided a brief summary of the problem in the edit summary, which should be visible just below my name. You can also click on the "view history" tab in the article to see the recent history of the article. This should be an edit with my name, and a parenthetical comment explaining why your edit was reverted. If that information is not sufficient to explain the situation, please ask.

I do occasionally make mistakes. We get hundreds of reports of potential copyright violations every week, and sometimes there are false positives, for a variety of reasons. (Perhaps the material was moved from another Wikipedia article, or the material was properly licensed but the license information was not obvious, or the material is in the public domain but I didn't realize it was public domain, and there can be other situations generating a report to our Copy Patrol tool that turn out not to be actual copyright violations.) If you think my edit was mistaken, please politely let me know and I will investigate. S Philbrick(Talk) 17:05, 5 February 2021 (UTC)[reply]

February 2021

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Information icon Hello, I'm Jasper Deng. I wanted to let you know that one or more of your recent contributions to Square root of 2 have been undone because they appeared to be promotional. Advertising and using Wikipedia as a "soapbox" are against Wikipedia policy and not permitted; Wikipedia articles should be written objectively, using independent sources, and from a neutral perspective. Take a look at the welcome page to learn more about Wikipedia. Thank you. Jasper Deng (talk) 21:53, 8 February 2021 (UTC)[reply]

Stop icon You may be blocked from editing without further warning the next time you vandalize Wikipedia, as you did at Methods of computing square roots. - DVdm (talk) 22:03, 8 February 2021 (UTC)[reply]