@rschwieb I went through some of the questions that this op has asked before, and all of them seem to be either psq or posting a picture and asking for some clarifications.
I would like to suggest deleting math.stackexchange.com/q/4971441 . It is basically an image-as-question question, which the asker has repeatedly edited in somewhat strange ways. It has an accepted answer, so it will not be Roomba'd.
