User talk:2604:CA00:128:863:62C4:274A:9A8B:CCFC

Please refrain from making test edits in Wikipedia pages, even if you intend to fix them later. Your edits have been reverted. If you would like to experiment again, please use the sandbox. Thank you. Materialscientist (talk) 16:33, 1 November 2019 (UTC)

November 2019
Please refrain from making unconstructive edits to Wikipedia, as you did at Undefined (mathematics). 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. Bill Cherowitzo (talk) 21:01, 1 November 2019 (UTC)
 * If this is a shared IP address, and you did not make the edits referred to above, consider creating an account for yourself or logging in with an existing account so that you can avoid further irrelevant notices.