Talk:Mathematical constant

Explanation of MRB constant changes

I see that someone posted the MRB Constant in the table. Per WP:AB, in clear-cut case, I corrected the year First Described and # of Known Digits. Marvin Ray Burns (talk) 23:47, 10 May 2009 (UTC)

I corrected the documented first time described.Marvin Ray Burns (talk) 02:04, 17 May 2009 (UTC)

I am trying to retrieve an earlier documented time.Marvin Ray Burns (talk) 15:34, 18 May 2009 (UTC)

I made corrections for a few pressing issues in the table.Marvin Ray Burns (talk) 02:19, 2 February 2011 (UTC)

Square root of 5: only "1,000,000" digits?

Since the Golden ratio is known to billions of digits (at least 17 billion per that article though this article suggests it's actually 100 billion), shouldn't the Square root of 5 also be known to the same billions of digits? After all:

$\sqrt 5 = 2 \varphi - 1$

Glenn L (talk) 19:50, 25 May 2009 (UTC)

Rydberg constant

Why is the Rydberg constant on the side of a page titled Mathematical constant? --Dgroseth (talk) 00:56, 16 August 2009 (UTC)

Good point. It was used as an illustration of notation, but it's not a well chosen example for this page - I have replaced it with Champernowne constant. Gandalf61 (talk) 09:50, 16 August 2009 (UTC)

Mn/Me mass ratio in terms of Zeta(3) and the Golden ratio

Despite the simplicity of this approximation : if we refer to the NIST table the value of Mn/Me = 1838.6836605 and the error being 0.0000011. Now this approximation is approx. is way too far from the real value to be considered serious. The value is 36/((2+2*5^(1/2))^(1/2)-2*Zeta(3))^2 = 1838.691257454... so the error is : 0.007...

the error ratio is about 7000 times the standard error, please refer to the NIST 

document for explanations http://physics.nist.gov/cuu/Constants/Table/allascii.txt —Preceding unsigned comment added by Plouffe (talk • contribs) 23:59, 29 January 2010 (UTC)

Order

Is there any specific order for the table (beyond having the most known at top, obviously)? Magister Mathematicae (talk) 03:30, 2 April 2011 (UTC)

Sierpiński's constant

I was checking some of constants vs Wolfram Alpha, for Sierpiński's constant, WA returns 0.822825249 ... whic is completely different than the article lists here, I have no insight into the discrepancy.--Billymac00 (talk) 02:54, 18 April 2011 (UTC)

Mathworld con--Billymac00 (talk) 03:09, 18 April 2011 (UTC)firms Wikipedia ...

Add Negative One

I find it funny how the table of constants includes i, but it fails to include -1. -1 is more important than i, as it introduces negative numbers, the reciprocal, inverse functions and inverting in general, and its i squared. There is no reason why -1 shouldn't be in the table. — Preceding unsigned comment added by 186.222.145.211 (talk) 00:55, 29 August 2011 (UTC)