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Re:Atlas of Mathematical Objects by brudgers on Tuesday May 10, 2016 @01:32PM (#11668956)
Re:Atlas of Mathematical Objects by danbruc on Tuesday May 10, 2016 @05:11PM (#11670684)
Here is a Numberphile video [1] that explains - at the very end - why this database was put together.

[1] https://www.youtube.com/watch?v=VTveQ1ndH1c

Re:Atlas of Mathematical Objects by officialchicken on Tuesday May 10, 2016 @11:49AM (#11668070)
I was wondering how it was built since equations aren't the nicest things to render with HTML. A quick 'view source' shows the site is using MathJax (not MathML) for displaying the equations.

I presume a lot of content is submitted or formatted using Tex/Latex. Can any HN'ers elaborate on the workflow for review/editing/publishing on the site?

Re:Atlas of Mathematical Objects by hasch on Tuesday May 10, 2016 @03:28PM (#11669890)
The simple reason for mathjax is,that it is the only one that has many of the required features and it works across browsers. MathML can't deliver any of that...
Re:Atlas of Mathematical Objects by olamaria on Tuesday May 10, 2016 @01:41PM (#11669025)
Re:Atlas of Mathematical Objects by officialchicken on Tuesday May 10, 2016 @07:46PM (#11671598)
Thanks for that link. In one of the MD files[0], I found information on the editorial board.

[0] https://github.com/LMFDB/lmfdb/blob/master/Development.md#ba...

Re:Atlas of Mathematical Objects by Someone on Tuesday May 10, 2016 @01:29PM (#11668930)
…in Number Theory.

Also: license is GPLv2+, so they seem to think this is software. That makes some sense.

(And moderators, please fix that typo; mathmatical is spelled with an 'e')

Re:Atlas of Mathematical Objects by williamstein on Tuesday May 10, 2016 @02:11PM (#11669269)
Calculating the data makes extensive use of http://www.sagemath.org/, which is GPL'd; moreover, the LMFDB contributors also contribute a lot to SageMath.
Re:Atlas of Mathematical Objects by olamaria on Tuesday May 10, 2016 @01:41PM (#11669032)
Re:Atlas of Mathematical Objects by williamstein on Tuesday May 10, 2016 @05:46PM (#11670926)
Timothy Gowers (Fields Medalist and open publishing advocate) just wrote a blog post about this: https://gowers.wordpress.com/2016/05/10/the-l-functions-and-...
Re:Atlas of Mathematical Objects by grandalf on Tuesday May 10, 2016 @11:52AM (#11668095)
In general, what is a mathematical object? Is the natural numbers one?
Re:Atlas of Mathematical Objects by openasocket on Tuesday May 10, 2016 @12:06PM (#11668211)
It's just a informal term for the things mathematicians study. So the natural numbers are mathematical objects, as well as a set, a function, a manifold, a vector space, etc.
Re:Atlas of Mathematical Objects by dogecoinbase on Tuesday May 10, 2016 @07:35PM (#11671538)
This is actually a surprisingly complex question in mathematical philosophy -- I unfortunately can't find a copy online right now, but if the idea of mathematical objects interests you I'd highly recommend Paul Benacerraf's 1965 paper "What Numbers Cannot Be", which explores the complexity of the idea of even a single integer as an "object".
Re:Atlas of Mathematical Objects by Cogito on Tuesday May 10, 2016 @10:15PM (#11672193)
For those interested, the article is actually called "What Numbers Could not Be" (many references have "What Numbers Cannot Be" so maybe it was published under both names at some point?)

There is a copy at:

http://isites.harvard.edu/fs/docs/icb.topic1240846.files/Ben...

Re:Atlas of Mathematical Objects by dogecoinbase on Tuesday May 24, 2016 @01:55PM (#11763893)
Thank you! I just checked my copy of Cambridge's Philosophy of Mathematics and it is indeed "could not" -- the PDF I have on my laptop, however, is "cannot". I wonder when/where that happened.
Re:Atlas of Mathematical Objects by grandalf on Wednesday May 11, 2016 @01:11PM (#11677126)
Thanks for posting that!
Re:Atlas of Mathematical Objects by hasch on Tuesday May 10, 2016 @03:44PM (#11670029)
I think, it's an instance of a mathematical "idea". E.g. 7 is an object of the idea "prime numbers".
Re:Atlas of Mathematical Objects by williamstein on Tuesday May 10, 2016 @03:24PM (#11669853)
Re:Atlas of Mathematical Objects by jiiam on Tuesday May 10, 2016 @02:13PM (#11669283)
A bit disappoint by the narrow point of view. Atlas of Number Theoretical Objects would have been more appropriate. Still nice, though.
Re:Atlas of Mathematical Objects by kafkaesq on Tuesday May 10, 2016 @04:18PM (#11670314)
The site could use a better name. But presumably there's no reason the interface and cataloguing system can't be extended to other domains.
Re:Atlas of Mathematical Objects by GFK_of_xmaspast on Tuesday May 10, 2016 @05:02PM (#11670633)
What are some specific examples of other types of objects you would like to see.
Re:Atlas of Mathematical Objects by explanibrag on Tuesday May 10, 2016 @05:32PM (#11670837)
All the finite simple groups would be nice, for example.
Re:Atlas of Mathematical Objects by GFK_of_xmaspast on Tuesday May 10, 2016 @05:38PM (#11670879)
I assume you mean the sporadic groups? Because the families are all unbounded.

There's also this: http://brauer.maths.qmul.ac.uk/Atlas/v3/

Re:Atlas of Mathematical Objects by partycoder on Tuesday May 10, 2016 @05:47PM (#11670928)
Not criticizing or anything, just curious: What is the difference/advantage with respect to Wikipedia or Wolfram Mathworld?
Re:Atlas of Mathematical Objects by Someone on Tuesday May 10, 2016 @07:04PM (#11671387)
Mathworld has broader scope and a tighter license (http://mathworld.wolfram.com/about/faq.html#copyright)
Re:Atlas of Mathematical Objects by williamstein on Tuesday May 10, 2016 @07:27PM (#11671496)
LMFDB contains a large amount of extremely difficult to compute data about mathematical functions that arise in number theory, which took decades to compute and debug, and relations between that data. Just as hundreds of gigabytes of detailed astronomical data is not in Wikipedia or Wolfram Mathworld, this data about number theory is not in Wikipedia or Wolfram Mathworld either, and it never will be.
Re:Atlas of Mathematical Objects by williamstein on Tuesday May 10, 2016 @07:33PM (#11671524)
I should add that behind the scenes LMFDB really is a (MongoDB) database, there's an API that @hasch (here on HN) wrote, so that data can be recovered in JSON format, etc. To give some sense of what is in there, this http://johncremona.github.io/ecdata/ is just a tiny bit of what is in LMFDB.
Re:Atlas of Mathematical Objects by has2k1 on Tuesday May 10, 2016 @06:31PM (#11671222)
LMFDB is more specialized. But given an infinite amount of time, the others would acquire that information.
Re:Atlas of Mathematical Objects by frobitz13 on Wednesday May 11, 2016 @07:44AM (#11674341)
Re:Atlas of Mathematical Objects by BucketSort on Wednesday May 11, 2016 @09:54AM (#11675252)
Someday we will draw the link between this area/program and AI. There's something deep here that has implications I don't think we understand.
Re:Atlas of Mathematical Objects by frobitz13 on Wednesday May 11, 2016 @10:26AM (#11675552)
Stephen Wolfram has suggested something along these lines (more in the context of machine learning than AI, per se).
Re:Atlas of Mathematical Objects by crb002 on Tuesday May 10, 2016 @03:04PM (#11669670)
Re:Atlas of Mathematical Objects by kercker on Tuesday May 10, 2016 @11:33AM (#11667936)
I don't understand why there is an "MIT" in the title.
Re:Atlas of Mathematical Objects by rossdavidh on Tuesday May 10, 2016 @11:45AM (#11668042)
It stands for "Mathematical Is Terribly-hard-to-spell"
Re:Atlas of Mathematical Objects by dang on Tuesday May 10, 2016 @01:56PM (#11669155)
Thanks—fixed. No more "MIT" in title either.
Re:Atlas of Mathematical Objects by pizza on Tuesday May 10, 2016 @12:51PM (#11668599)
Re:Atlas of Mathematical Objects by williamstein on Tuesday May 10, 2016 @02:09PM (#11669258)
It was there before because one of the LMFDB contributors (Andrew Sutherland) is at MIT.