I have a question about my Mathematics Stack Exchange post: Meaning of “modulo the identity matrix”
- Sorry if this is the wrong place for these Qs; I'm new to math.stackexchange and I don't know where to ask these Qs. If this is the wrong place, where should I ask Qs like these?
- I posted a Q about 𝑃𝑆𝐿(2,𝑅) Oct. 22. Three comments and 1 answer were posted in response. How do I respond to a specific comment and how do I respond to an answer?
- I got the idea that I should respond to an answer by editing my original Q. Is that right?
- If I edit my original Q, say, a month or two later, how will anyone see my edits so they might respond to my edits? Thanks.
@Jyrki
would alert me,@lulu
would alert Lulu (under your question, but not here, because Lulu has not commented here). Sometimes this is superfluous (when addressing the sole commenter, or when commenting under an answer). This mechanism (sometimes called @-ping) shows in the toolbar as a red number next to the INBOX icon. $\endgroup$