User talk:高階無窮小

Anna Frodesiak (talk) 02:08, 19 January 2016 (UTC)

Your recent edits
Welcome! You recently uploaded two images here. May I ask where you got them? From a website? Thanks. Anna Frodesiak (talk) 02:08, 19 January 2016 (UTC)

Hi, I see you are editing without answering the above question. Please do answer. Thanks. Anna Frodesiak (talk) 09:36, 19 January 2016 (UTC)