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Mechanical Engineering
Euler made important formulae for the buckling of colums which are not dicussed here.
Happy birthday!
Happy 300th, Herr Euler!
My friend Walt says you do not look a day over 290.
-- Dominus 14:59, 15 April 2007 (UTC)
Here, here! Cheers to The Euler on his 300th! What can I say that hasn't already been said...you're the shit, Euler!--Hypergeometric2F1(a,b,c,x) 09:37, 23 April 2007 (UTC)
Expressions That May Lead to Confusion
Section 2.1 Mathematical notation, line 3: He also introduced ... the letter e for the base of the natural logarithm (now also known as Euler's number)
Section 2.5 ... describing numerous applications of ... Euler numbers
It is hard to distinguish between Euler's number and Euler number. Although there are seperate pages devoted to the two concepts, this may still lead to confusion for beginners and those who use English as a foreign language. Shouldn't there be "see also" links behind both expressions?
-- User:Dale Zhong 14:59, 7 July 2007 (GMT+0800)
Lutheran or Calvinist?
This needs to be cleared up. The lead says he's commemorated in the Lutheran calendar of Saints, and the infobox says he's calvinist. Frankly, I've seen the sources go both ways, and I advocate replacing all incidences of Euler's religion with the wonderfully vague "protestant". Borisblue 00:21, 26 July 2007 (UTC)
Generally a good suggestion, but in this case, "Calvinist" is correct: E.T Bell's "Men of Mathematics" (Penguin, 1953) says Calvinist, as does the "Eulogy" by the Marquis de Condorcet (1783). Ioan James' "Remarkable Mathematicians" (Cambridge University Press, 2002) says Evangelical Reformed (= Calvinist) Radagast3 (talk) 08:43, 7 April 2008 (UTC)
I've been reading about Euler's religion, and he appears to have gone to the French reformed church when he lived in Berlin, which was a Calvinist church. 99.233.20.151 (talk) 05:08, 16 April 2008 (UTC)
Affine Geometry?
Affine geometry is a fundamental tool in computer graphics, which in turn has had huge impact in the film industry, advertising, etc. Given that Euler invented it, its omission from the article is surprising. --Vaughan Pratt (talk) 10:54, 13 February 2008 (UTC)
- A comprehensive list of Euler's contributions would be horrendously long. We're talking about a guy who is probably the most prolific scientist ever. I'm not an expert of on the subject, but I don't think affine geometry is as significant as a lot of the other contributions listed. Borisblue (talk) 05:50, 13 August 2008 (UTC)
Logarithm of negative numbers?
Perhaps I don't understand something, but as far as I know, there is no definition for Log(z) if z is on the negative real line. I thought this was the reason why Log(z) is not analytic on any disk that contains a piece of the negative real line or zero. Rocketman768 (talk) 04:06, 6 May 2008 (UTC)
- Hello, this talk page is for discussions on improving the Leonhard Euler article. The kind of question you have, you can pose at the mathematics reference desk. Regards, Crowsnest (talk) 15:09, 6 May 2008 (UTC)
Mathematical formula formatting
There's a formula in the "Personal philosophy and religious beliefs" section that needs help in my opinion. I changed the formatting slightly to make it at least readable (it wasn't before), but it seems to me to be the sort of thing that would benefit from being in LaTeX format. Unfortunately, I don't know how to do that, so that's why I'm mentioning it here. I hope someone can (and will) do better with it than I have. Thanks. -- edi (talk) 15:15, 20 July 2008 (UTC)
- The original version of this section had the formula in Latex, but I understand why it was changed- it messes up with the line formatting a bit. I've changed it back however, I think it looks better in Latex.Borisblue (talk) 05:40, 13 August 2008 (UTC)
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