I agree, and I couldn't resist unilaterally rolling back the edit. So I obviously weigh in on "rollback".

Oops, I didn't ping you above, @XanderHenderson. Sorry! But, I'm willing to roll back to the questionable edit if others feel strongly about it.

@amWhy I was just looking for one other person to agree with me before I did it myself. :P

Yeah, that question should probably be closed. There are several good answers to the question here (I am obviously biased, but I actually rather like both PM 2Ring's and jadhachem's answers quite a lot).

And that question is a duplicate of this one (which doesn't have any great answers, but seems to be the ur-question (maybe?)).

@user21820, @Did, @XanderHenderson, @ProfessorVector, @all Multi-part, no-effort PSQ needs to be closed.

I am going to once again suggest that this question should be closed as a duplicate.

@XanderHenderson I had, prior to you pointing it out as a duplicate, already voted to close as off topic. (Click on the "close" option to see 1 downvote cast as off topic (mine), and your downvote cast as "duplicate". But I entirely agree it needs to be closed, and I would have voted to close as a duplicate if I hadn't already voted to close as off-topic.

@XanderHenderson: I just pinned your last comment to the side bar.

Thanks

Ack! I just approved an edit that I shouldn't have...

drat

Here; I wanted to "improve" the edit by taking the \limits out of the title

Thanks, @amWhy

@XanderHenderson It's all good. \limits gone in the title of that question!

The user self-deleted this Question an hour after getting my Answer. The user had previously spent many hours and Comments imploring that someone provide a solution, and I'd helped them through the edits necessary to get the Question (originally titled "Linear algebra question (solution to the equations) ") reopened. So I'm suggesting the Community undelete their post.

PSQ no-effort one-liner up for closure.

Hello, @JyrkiLahtonen!

@hardmath Shouldn't that type of question be flagged for moderator attention, rather than having the community deal with it?

@MarkMcClure Perhaps, and that was my first impulse, but I thought it worth letting CRUDE take a look as the Community might be able to deal with a first time "offense" at least as well as a Mod. I've already cast my vote to undelete.

It seems the user had second thoughts about the self-deletion and reversed it, in order to ask for clarification about my Answer!

No, I see that the Community reversed the deletion, and then the user asked for clarifications.

@hardmath I noticed it was undeleted after clicking on your link (which you provide above).

Sigh...

@XanderHenderson It's open for deletion; has two downvotes now. Ooh, and I see you've long passed 10K (by a K)! Congrats!

@XanderHenderson There's a quote from Charles Babbage: "I am not able rightly to apprehend the kind of confusion of ideas that could provoke such a question." (after he was asked twice if his analytical engine would produce right answers even if fed with wrong figures).

I've passed 10k? I don't think so...

@amWhy @XanderHenderson The reputation that you see in the left column of chat takes more than just your Math.SE reputation into account. I think it's all rep across all your member sites.

Ahh, Thanks, @Mark I had clicked on @Xander's chat profile, and you're right, it records rep across all sites. Sorry for the false alarm @Xander. I've known you're headed in that 10K direction on MSE.

[ SmokeDetector | MS ] Few unique characters in body: Determining who has the winning strategy by Hen on math.SE

PSQs 1, 2, 3,

and this, twice posted by same user within a 3 hour span. 4.

@user21820, @Did, @ProfessorVector, @others See the links above. (On the first two links above, I intended to link to the question, not the answer.)

One more close vote needed here, @user21820, @Did, @ProfessorVector, @XanderHenderson

One more close vote needed here.

both MR and Young are suspended

@ZacharySelk I had seen that yesterday. Not terribly surprising, though.