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Questions tagged [search]

For questions about built-in search functionality of this site and about searching this site using external search engines.

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147 votes
0 answers
2k views

Trying to ask a question provides better results than normal search.

I have noticed this interesting behavior several times now. Many a time I scour Math SE looking for a particular query but fail to find anything even after several rounds of rephrasing and ...
Akay's user avatar
  • 411
126 votes
2 answers
5k views

Announcing a third-party search engine for Math StackExchange.

Approach0 is a math-aware search engine. “Math-aware” means you can add math expression(s) as some of your keywords to have search engine help you find similar expressions. Check out here: https://...
Wei Zhong's user avatar
  • 457
69 votes
5 answers
3k views

How to search on this site?

When using this site, it is quite important to be able to find posts on this site which might be related to the question I am interested it - both to avoid duplication (i.e., not asking again ...
69 votes
0 answers
547 views

"Maybe answered questions" box on "Ask Question" page is much more useful than "Search Q&A"

I often find that "Search Q&A" is quite useless when I want to find a question or something related to it. But I've also noticed that when I'm about to ask a question, the "Questions that may ...
Ruslan's user avatar
  • 6,815
58 votes
3 answers
20k views

What is the best way to search for a math equation on the internet?

I just asked the question: prove that $\int_{0}^{1}x^{-x}dx=\sum_{n=1}^{\infty}n^{-n}$. I do not know of a good way to search an equation (nor did I know this equality is known as sophomore's dream) ...
user103828's user avatar
  • 2,388
52 votes
2 answers
18k views

How to search for a formula/expression

Suppose I want to search for instances where an expression similar to $x_n^2-x_{n-1}x_{n+1}$ shows up. How would I do that? I suppose the question goes beyond searching MSE. Are there search engines ...
Maesumi's user avatar
  • 3,702
39 votes
3 answers
1k views

Searching for accented characters is too strict

A search for "lindelof" and a search for "lindelöf" produce different results. In some sense the results are correct, since the first search finds only those posts that mention "lindelof" and the ...
MJD's user avatar
  • 65.7k
35 votes
2 answers
1k views

Is there any particular way to find the "easy" questions to answer?

Right now, I am student of pre-calculus. I am still studying basic calculus (derivatives & integrals) just because - well why not, it helps me get a head start. But as you can imagine sometimes I ...
naiveai's user avatar
  • 229
33 votes
0 answers
353 views

Improving the search system

When recognizing some questions as duplicates, sometimes it is difficult to find the original question one remembers. For instance, I recently saw a question asking to prove that $$\forall x\in(-1,1),\...
Jack D'Aurizio's user avatar
25 votes
1 answer
1k views

How to find questions originating from papers?

What is a reasonable way to find questions which are related to mathematical papers? The motivation to ask this was a recent post mentioning that: However the focus of this site seems to be ...
Martin Sleziak's user avatar
24 votes
2 answers
807 views

How do you search for duplicates?

Sometimes I am really surprised how fast are the duplicates of new question found, given that we have vast amount of questions here. I hope posting this question here can be useful and can lead to ...
Martin Sleziak's user avatar
24 votes
0 answers
1k views

Help me find an original for questions like "Why $(-1)^{ab} \ne [(-1)^a]^b$ when $a, b, \in \Bbb R$?"

There are many questions that boil down to "why is it not true that $(-1)^{ab} = [(-1)^a]^b$ (or $z^{ab} = (z^a)^b$) for $z \in \Bbb C$ and $a, b \in \Bbb R$ (or $\Bbb C$)?" and, respectively, "...
Alex M.'s user avatar
  • 35.3k
23 votes
0 answers
214 views

Provide a way to search for a user's answers to closed questions

The only notification one gets that a question they've answered has met with others' dissatisfaction is when it has been deleted and their reputation is reduced. It would be nice if a user, who has ...
robjohn's user avatar
  • 347k
21 votes
2 answers
2k views

Is there any way to see my deleted questions or answers?

Previously I deleted some of my questions, I wonder if there is a way to see (only) my deleted questions?
Math137's user avatar
  • 1,839
21 votes
3 answers
3k views

How do you search for specific questions?

I have noticed that a lot of times people ask a question and a duplicate is instantly found. It's not necessarily true that the person hasn't tried to look up the question, but it is just hard to ...
Sidd Singal's user avatar
  • 3,462
21 votes
1 answer
317 views

Change the link to search in modal window for the first-time askers

Since March 2020, a modal window with some basic information is shown to a user who is asking their first question, see here: The new ask page is now live on the network! This replaced the older /ask/...
Martin Sleziak's user avatar
21 votes
0 answers
326 views

How effectively to search through MSE resources

I'm on MSE one year but I'm still don't know how to effectively search through MSE resources to get required information. The search machine is very inaccurate and rarely gives high quality response. ...
Widawensen's user avatar
  • 8,224
20 votes
1 answer
307 views

How can I make sure the problem I want to ask has not been presented before?

e.g. I have a question on proving an inequality statement. If I google it Google will not recognize it and if I use Math StackExchange'search engine, it will not respond. Thank you for your help.
max's user avatar
  • 314
20 votes
0 answers
1k views

Search queries involving symbols and/or $\TeX{}$

Currently some (most?) fairly crucial symbols such as = and ^ are truncated in search queries, making it pretty tough to find ...
Clive Newstead's user avatar
19 votes
5 answers
360 views

Question's body is not abbreviated in search view

I searched for questions on perfect numbers. Most of the questions are abbreviated, but it looks like Tharsis found a workaround: What's going on here?
draks ...'s user avatar
  • 18.5k
18 votes
3 answers
472 views

Should we add external searches in some help pages about search?

I think that it might be useful to add somewhere advice about other possibilities how to search. (I am not sure what would be right place, but it would be nice to have it somewhere where new users who ...
Martin Sleziak's user avatar
18 votes
1 answer
705 views

Why I seemingly cannot find my question when searching but then later when I get flagged for duplicate question I find the similar question

I try to avoid creating duplicates but I always fail. Consider my recent question. I was searching the finite subgroup criterion. So I typed into the search function "Finite subgroup criterion&...
likely_fail_2202 T_T's user avatar
17 votes
1 answer
495 views

How to search math terms/notations accurately and efficiently? Could some experienced users summarize some tips here?

How to search math terms/notations accurately and efficiently? Could some experienced users summarize some tips here? I believe such tips will be helpful for inexperienced users looking for hints or ...
TCHuang's user avatar
  • 371
14 votes
1 answer
306 views

Is there a way to see all the closed or deleted questions?

Is there a way to see all the closed or deleted questions both in the main and the meta? I searched the meta to see if the same(or similar) question was asked before, but I couldn't find it. If the ...
Makoto Kato's user avatar
  • 42.8k
14 votes
0 answers
474 views

How to quickly find duplicate questions which are not exact duplicates.

Some moderators are able to find duplicate posts which are not exact duplicates. That is to say even in the case where the question is posed completely differently but the solution uses similar ...
open problem's user avatar
  • 1,410
14 votes
0 answers
660 views

Find earlier questions about $x^2 - 3 x = 2 y^2$

a question I answered, Solving the nonlinear Diophantine equation $x^2-3x=2y^2$ has apparently not helped the student enough. I answered his email today, maybe that will help. In particular, I ...
Will Jagy's user avatar
  • 140k
13 votes
1 answer
297 views

Finding protected questions

How do I find the list of protected questions? I've seen a couple of protected questions for which I could not see a reason for protection and I'd like to find more.
lhf's user avatar
  • 217k
12 votes
1 answer
1k views

Does $\LaTeX{}$ affect google search?

I was just wondering, do LaTeX in titles or the body of questions affect if they show up in google search?
Jeel Shah's user avatar
  • 9,326
12 votes
1 answer
274 views

Is it possible to prevent substitution in approach0?

I don't know if the question is well suited here, but I don't know about a forum dedicated to this search engine, yet since it is widely used by MSE members, I guess that should do it (please redirect ...
zwim's user avatar
  • 28.8k
12 votes
1 answer
591 views

I can't search on ^

I was trying to search for duplicates for this question: How to define the $0^0$? But it's very hard to do this, as the search engine seem to ignore the ^ symbol. Searching for "0^0" or "0 0" give ...
Kasper's user avatar
  • 13.6k
11 votes
2 answers
302 views

Ordering the questions of a day

When we order the questions by votes, we see questions from all past years and days. There are a way to see the questions of today ( or of a given day or period?) ordered by votes?
Emilio Novati's user avatar
11 votes
1 answer
325 views

See questions recently posed by "high-rep" users

Often times I just browse through some of the questions on MSE, and I've noticed that many of the questions posed by lower-rep users (for example, <500) don't show as much effort, aren't as ...
Clayton's user avatar
  • 24.8k
11 votes
1 answer
173 views

How do I make sure my question is not a duplicate? [duplicate]

A couple of questions that I have asked on this site have been marked duplicates and I have seen people attach the link of the previously asked question quickly (not just on mine, but on all other ...
AryanSonwatikar's user avatar
11 votes
0 answers
116 views

Improve similar problem searching system

This is a problem which has happened many times when I want to ask a question on MSE. After I finish the title of my question, there'll be a Similar questions box to offer me some similar question. If ...
DreamAR's user avatar
  • 986
10 votes
1 answer
139 views

How to search in favorite questions?

As the number of my favorite questions increase, it becomes harder to find them in the list. Is there a way to search in my favorite questions? Also, would it be possible to search in another user's ...
Red Banana's user avatar
  • 24.1k
10 votes
3 answers
187 views

Unable to search my answers for a particular topic

In an effort to find this answer, I executed this query. I tried several other variants of this query, but I was unable to find my answer to a question about uncertainty. I thought I used to be able ...
robjohn's user avatar
  • 347k
10 votes
1 answer
250 views

How to efficiently use Google to search Math.SE content?

Regulars know that the built-in site search often fails to find relevant posts. Using the same search term in Google and adding site:math.stackexchange.com tends to ...
user avatar
10 votes
1 answer
276 views

Searching comments

While looking over some material concerning "separable differential equations", I remembered a conversation I had (via comments) with another MSE user and wanted to find said conversation. I ...
The Chaz 2.0's user avatar
  • 10.5k
10 votes
2 answers
583 views

How to search for duplicate of this classic complex analysis question?

Aim A quick search for duplicates. Question If $|f(z) |\leq 1 + |z|$, show that $f(z) = az + b$ is a recently-posted question. I tried to search for its duplicates on Approach0 but I didn't manage to ...
GNUSupporter 8964民主女神 地下教會's user avatar
10 votes
1 answer
146 views

Searching for mathematical expressions

I got this question a few years back in an postgrad interview and it had me stumped until the interviewer suggested the trick to it. I solved it again just now on paper and wanted to check my answer. ...
TooTone's user avatar
  • 6,363
9 votes
2 answers
785 views

How to browse or search comments?

SE is already very good in keeping each individual user's record on their questions raised and their answers posted. I am wondering is it also possible to keep track of their comments made too? Then ...
Mick's user avatar
  • 17.2k
9 votes
1 answer
418 views

How to search for links to a particular external site?

Setup: Cooler heads and wiser minds than mine, please consider. I came across a Question that struck me as chatty and not suitable for StackExchange, much less Math.SE. The initial response was ...
hardmath's user avatar
  • 37.1k
9 votes
1 answer
187 views

How to sort new questions by votes

Suppose I want to sort questions by votes asked in the last 3 days. Can this be done? It is already great that users can view questions based on "newest" and "votes" options, but I am wondering ...
Prism's user avatar
  • 11.3k
8 votes
2 answers
219 views

What is the efficient way to search post with pictures/images?

I have answered quite a few posts with pictures/images. Is there a way to search MSE so that it lists all my posts, where I have used an image/picture?
user avatar
8 votes
1 answer
201 views

the relationship between the tags

If a person is only interested in number theory, then he/she would just want to access only a few tags, such as number theory, elementary number theory, diophantine equation, etc. But if we select ...
lsr314's user avatar
  • 15.8k
8 votes
3 answers
256 views

Browsing unregistered users?

Is there any way to browse answers by unregistered users and/or browse unregistered users? I understand that you have not indexed them for search but the data is clearly there somewhere in your ...
Rudy the Reindeer's user avatar
8 votes
0 answers
87 views

Is there a way to see related questions *before* I post a question? [duplicate]

Is there a way to see related questions before I post a question? I recently posted this question. After I wrote the question, but before I posted it, I went through the automatically-generated list ...
Dan's user avatar
  • 24k
8 votes
0 answers
86 views

Searching for text in questions I have answered

The question pendulum modeling is essentially a duplicate of the question mathematical model of a pendulum. I had supplied an answer to the older one and wanted to find it. I searched on my user ...
Ross Millikan's user avatar
7 votes
3 answers
226 views

How to intersect users and tags?

I would like to see all the questions with a given tag that user xxx has asked or answered. How do I do that? Edit I have received three fine explanations, more than completely answering my ...
Georges Elencwajg's user avatar
7 votes
2 answers
261 views

In search of a possibly deleted question

I'm trying to find a possibly deleted question. I don't remember the user. Is this possible? It was a question about finding $$\operatorname{E}\left[g(X)\right]$$ If my memory serves me correctly $$g(...
k170's user avatar
  • 9,085