User talk:2405:204:6399:7C20:C337:B14B:6038:17EF

January 2019
Please refrain from making unconstructive edits to Wikipedia, as you did at Kronecker product. 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. Kb03 (talk) 14:15, 17 January 2019 (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.