# Online encyclopedia of maths and physics constants?

The OEIS is amazing, I used to spend hours creating sequences using arbitrary algorithms and look it up to see if it has an alternate definition and what's the meaning and the history of this sequence.

Does it have an analogous for constants?

After some search I found the RIES (http://mrob.com/pub/ries/) and the ISC(http://isc.carma.newcastle.edu.au/index) which are amazing, and also I can use Wolfram Alpha to get a hint, but these resources are nothing like the OEIS, they aren't really like an Encyclopedia, they don't tell the history and the definition of the number, they just use clever algorithms to make 'inverse calculations' based on the given number.

Is there something more like to the OEIS?

• You may in fact find many explanations about constants in OEIS by looking up the decimal expansion, e.g., oeis.org/… Feb 2, 2015 at 12:54
• Yes, for example, try this search in the OEIS: 0.076923076923. Or this one: 0.6626069. Mar 6, 2015 at 5:16
• Perhaps, using OEIS, if you get a name for your number, then the Internet can find out all bout it! Jun 9, 2015 at 19:20