I appreciate your work and am looking forward to using it; it seems that I am not alone in this, given that your post currently has 12 - 1 votes. There is one problem though: starting by the end of August, you have posted on MSE a number of answers that only advertise your search engine and point to duplicates found with the said engine (half of those ...
Searching for a specific formula is often rather difficult. A tool which is very suitable for this is the Approach0 search engine.
Some basic information can be found in Guide for New Users (which contains also animations of some examples). If you want to know more about the project, you can look at the documentation.
Approach0 uses mathquill ...
See my side-project, it is an open-source math-aware similarity search engine.
I am hoping someone interested can join and form a community to push this project forward, this is the reason I am posting here.
If you are interested at this project, please follow it on twitter: https://twitter.com/approach0. Approach0 will post updates ...
See my side-project, it is developing its indices currently.
I will publish its first release when the entire math StackExchange is indexed.
Also, I am hoping someone interested can join and form a community to push this project forward, this is the reason I am posting here, even if this project is not fully ready for public using.
It seemed to me as a good idea to make a CW answer where Math.SE users could add the problems they stumbled upon while using this search engine. (EDIT: And we can also use this chatroom for discussing Approach0-related issues and searching for questions in general.)
I was unable to enter things like $\Bbb N$ $\Bbb N$, $\mathbb R$ $\mathbb R$, $\mathcal S$ $\...
What if we created something like a "Wiktionary" for equations?
A peer-to-peer site with a huge database of equations, linked to each other, with some description, their names, their related equations.
Blind to change of variables and substitutions, blind to alternative forms and notation, indexed, commented, and with clear links to Wikipedia (and other ...
Yes, you did your part, so feel free to add it.
In fact, to make it easier for folks to find it in the future, you can add statements like
I tried googling for "keywords", but could not find it.
(i.e. add some keywords to your question for easier searching in the future).
There are lists (on the meta and the main, separately) which you can access if you have 10k points or more, through review and then clicking tools and choosing the appropriate tab. These lists, however, do not include everything, they are limited in both time range and length.
The lists go only as far as 30 days the most. On the main site, however, due ...
One thing which we should keep in mind is that duplicates might be useful. They improve the chance that another user will find the question, since with each duplicate another copy with somewhat different phrasing of the title is added. So if you spent reasonable time by searching and did not find your question, it is not such a bad thing if it is later ...
searchOnMath looks interesting too. I think you can do what you want
Feb. 2019 Update from one the developers Flavio Gonzaga:
Recently our tool has indexed both: Mathematics and MathOverflow.
Currently, SearchOnMath is the mathematical search engine with the largest number of indexed sites (including Wikipedia, Wolfram MathWorld, among others ...).
Users with 10K reputation can access the Protected Questions list.
You can find this by going through the "review" link in the top bar, then choose the "Tools" tab and then the "stats" subtab, and finally looking at the "Links" towards the bottom of the page.
The SEDE can also be employed to find protected questions via the PostHistory table. Here's a ...
You can simply use Google with the restriction to this domain, using (in addition to the search query) site:math.stackexchange.com. (Of course, you can also use any other search engine where this restriction is possible.) For example, you can use the search: triangular numbers site:math.stackexchange.com to get to relevant posts about triangular ...
Lists of questions
There are also various lists of questions which might help when searching for some topic (some of them generated by the Stack Exchange software, some of them created manually).
If you click on ask question and fill at least the title (perhaps also tags) the software generates a list of questions that are similar. As pointed out by some ...
Update: \exact queries are supported now.
Example: OR content:$\sin\left(\omega \exact t \right)$
Currently it is not possible. However, exact symbol matches are supposed to be prioritized to the very top of search results.
As a result, in your complex number example, it should first list as many $i^2 = -1$ as possible before other possibilities such as $n^...
EDIT: Since now (January 2022) any user can get a list of all their deleted questions (answers), this answer is no longer relevant if you want to find one of your own deleted posts. I will still leave it here - I guess such queries might sometimes be useful also if you search for deleted posts by others.
This is probably much less useful, but ...
There's nothing in the site search capabilities that would allow this, although the Stack Exchange Data Explorer (SEDE) would allow you to create a query to achieve this goal. The only caveat here is that the data in the SEDE is only updated once every week (Sundays at about 03:00 UTC), and so what the query retrieves may not accurately represent the current ...
Besides browsing specific tags, you can also go to the Unanswered list. You can also filter that list and show only questions that have at least one of a list of tags, for example:
For example, I want to see all questions posted in sequences-and-series in September month of 2016.
You can used built-in-search for this. The modifier created:2016-09-01..2016-10-01 returns only posts from September. (I have added one more day to be on the safe side - and also to make this easier to modify.) If you are interested just in one month, you ...
You can use the Stack Exchange Data Explorer for these kind of things.
For Q1, this query lists the questions answered by the two highest reputation users on the site, but you can easily adjust the user IDs.
Q2 requires a slightly different query (I took your user ID and a random person who answered one of your latest questions).
Please note that SEDE is ...
DISCLAIMER: As you can see, only some of the suggestions I have given below would actually help you to find this specific question. (And some of them only during the next week - after the next update of SEDE.) But at least they are some general suggestions what one might do in similar situations - so even the ones which don't help now might be useful in ...
If browsing through the comments list in your profile takes too long, you can search them through Data Explorer:
Search your comments (or another user's comments, by entering their User Id)
Comments left by a user on your posts (more generally, comments left by user A on posts by user B)
Search all comments
and my favorite
Posts edited after your ...
I often suggest JSTOR's free Register & Read access option for papers that are otherwise behind paywalls. In any case this query:
on the main Math.SE site returns 239 posts at present.
A fairly naive query:
is:question theorem reading paper
returns 273 posts at present, many of which seem of interest per the OP.
If you include created:2018-04-05 in your search query, you see the posts which were created today. You can restrict it to questions using created:2018-04-05 is:q. (Naturally, if you try the same thing tomorrow, you'll have to change the date to see new questions.) There is a shortcut created:1d which only returns posts created yesterday - I do not know ...
The site has built-in search engine - the search bar is near the top of the site. Notice that after you get to search results a link with "Advanced Search Tips" become available - it contains various search modifiers. (Advanced search options can also be found in the help center.)
Some useful advice:
Notice that search results can be ...