User talk:Twhung

Hi I have made amendments to the Ptolemy's theorem in wiki I am sure that I am correct. Please comment.

Please refrain from making unconstructive edits to Wikipedia, as you did at Ptolemy's theorem. 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. —David Eppstein (talk) 05:58, 17 October 2018 (UTC)