CURED - 2019-09-12

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1:47 AM

@TheSimpliFire :`(

@darijgrinberg No? I've repeatedly stated that I am not in favor of preserving bad questions simply because they have "good" answers. If they have great answers, I could be convinced.

In your example, the answer given is explicitly a proof sketch. By its nature, it is incomplete, and therefore, in my opinion, not "great".

11 hours later…

Martin Sleziak

12:34 PM

@quid Did you get some response back when you were looking at the question? Did you find some reasonable duplicate/merge target? I am asking mainly because I see that the question was deleted twice and it has again some undelete votes: math.stackexchange.com/posts/3325006/revisions

I will add also link to the messages about this question posted in the searching chatroom: chat.stackexchange.com/transcript/46148/2019/8/31

Martin Sleziak

12:52 PM

mathjax Is there any reason to include $~...~$ in mathematical expressions, like here: math.stackexchange.com/revisions/3353952/2 ? (Notice $~f~$, $~0~$, $~3~$, $~\mathbb R~$.)

I see the same thing also in several other posts edited by the same user.

I'm not sure whether this would be worth a separate post on meta. Maybe it's just something I do not know about, but I don't really see reason to include there those spaces.

Here is also a SEDE query which lists the posts containing this string.

Xander Henderson

1:17 PM

cv-pls notation I'm generally pretty forgiving with notation questions, but this question is pretty bad. Compact notation for $k(k+1)(k+2)$…?‭ - mjc‭ 2019-09-05 21:17:03Z

Martin Sleziak

I was a bit unsure whether to ask about MathJax and edits here or elsewehere - but I tried here, after all E stands for "Edit".

@XanderHenderson This post was linked in a question on meta: Lack of Context: Notation Question by Simply Beautiful Art.

Xander Henderson

@MartinSleziak I wonder how I missed that on meta...

Martin Sleziak

Personally I would have no problems with keeping the question if the OP explained the context a bit more.

Xander Henderson

Exactly---the "context" is a three word sentence fragment.

Martin Sleziak

Something like: "I often work with expressions like this, since this is exactly the numerator of the binomial coefficient $\binom nk = \frac{n(n-1)...(n-k+1)}{k!}$."

That would be definitely better than just: "Context: diagonals of Pascal's triangle."

Although this is probably not exactly what the OP meant there. (They ask about rising factorial rather than falling factorial. So maybe I should have written $\binom{k+n}k$.)

Xander Henderson

1:39 PM

A: Lack of Context: Notation Question

I generally have a pretty low bar for context on questions which are tagged notation. I think that the simple request for notation is often enough. However, I think that this question fails to meet even that low bar. I have some suggestions: A good start would be to move the title into the b...