User talk:Encyclops
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And one request. It is good to use
Notational and Usage Conventions
Hello. Your recent edits to log-normal distribution prompt two tips.
- (1) Notice the difference between these:
- Allowing the parentheses to have the right size, as in the second case, is customary.
- (2) "Partial expectation", with a lower-case initial "e", is correct Wikipedia style; capitalizing the "e" is not.
Michael Hardy 01:12, 2 January 2006 (UTC)
Invitation
Hi! You may be interested in following the discussions on the talk pages of Wikipedia:WikiProject Physics and Wikipedia:WikiProject Mathematics. If so, please think of putting yourself on the participants list for the projects as well. linas 03:52, 20 March 2006 (UTC)
See also http://en.wikipedia.org/wiki/Wikipedia:WikiProject_Mathematics/Current_activity
People in systems and control
Hi, just wanted to compliment you on improving the
- Thank you! Encyclops 03:36, 29 July 2006 (UTC)
apologies
Hi. It seems I jumped the gun by tagging your article with the context template. I only realized later your "more to come" edit sumary. Feel free to remove it (although I still believe that it could have a bit more context!) Pascal.Tesson 19:36, 29 July 2006 (UTC)
Condensing bios
Good work on the bios in
- OK. But I am worried about shortening it too much. It seems to me the word "professor" could be omitted in each case, but I would leave the name of the university, for example. In the beginning each person had literally just the name and it was difficult for the causal reader to have any idea who these people were and why they are mentioned. Ultimately though, I agree with you. Encyclops 17:51, 8 August 2006 (UTC)
Kolmogorov equations
Thanks of the clear up on those! jugander (t) 06:11, 15 August 2006 (UTC)
Hamiltonian
At the end of the article on Hamiltonian (control theory), you mention that in discrete time the costate variables have to be considered a timestep ahead of the state variables. It's not particularly clear why this is - could it be explained quickly, or referenced? Helmut Ahab 00:35, 7 September 2006 (UTC)
- It is a notational convention, not a deep result. I have added a small explanation. Encyclops 00:25, 8 September 2006 (UTC)
- Thanks for that. 128.250.102.134 00:49, 26 September 2006 (UTC)
Images listed for deletion
Some of your images or media files have been listed for deletion. Please see
Thank you. Pekaje 20:06, 19 April 2007 (UTC)
Statistical Arbitrage
In my humble opinion, Statistical arbitrage is more within the scope of something like WP:WikiProject Finance than WP:WikiProject Statistics. It is a topic in Finance (or Mathematical Finance) having some statistical aspects, rather than a mainstream Statistics topic. Encyclops (talk) 17:58, 22 April 2008 (UTC)
- See Wikipedia talk:WikiProject Statistics#Things on boundary of scope. My thought was that Statistical arbitrage did involve some statistical thinking in setting up the method. At present WikiProject Statistics is trying to bring all articles on statistics topics into the list of statistical topics to provide a basis for further progress. You might want to look at the project page and consider joining. Melcombe (talk) 18:11, 22 April 2008 (UTC)
farkas
Yes of course it should - that was a typo by me - thanks for noticing! However on a sidenote the lemma seems to be stipulated very differently in different texts... I've learnt it by using the Ax = b and the transponate in the alternative which i think is more logical. The typo with the came up when i changed them around because i found one source also using convex analysis style markings for that, but i think normals are correct here though. But thanks for notcing that. Gillis (talk) 14:25, 14 September 2008 (UTC)
Thanks for StatArb article
Not reading JofF and rest of fin lit on a regular basis, would like to thank you for drawing attention to Khandani and Lo (2007) article. Clears up some latent questions. Any insider rumours on the particular strategy (CDOs?) that brought the Aug 2007 event? 212.188.109.216 (talk) 21:12, 9 December 2008 (UTC)
TeX issue
Hello. Your edits to Fenchel's duality theorem prompt this comment. Please notice this difference—in particular in the positions of the subscripts on "min" and "max":
The latter uses \min_x and \max_p rather than \mathrm{min}_x and \mathrm{max}_p and is standard usage. Using the standard operator names rather than \mathrm not only affects the position of the subscripts but also in some cases affects spacing between "min" or "max" and the things that precede and follow them. Also, I think when "min" or "max" appears in a subscript or superscript, the standard operator name is made to assume the appropriate sizes—that's built into the software. Michael Hardy (talk) 14:39, 8 February 2009 (UTC)
Wikipedia conventions
This edit goes against standard Wikipedia conventions and makes an exception of this one case. I've moved it back. Michael Hardy (talk) 14:44, 8 February 2009 (UTC)
Cramer's paradox
Hi, Encyclops, whoever you are. Since User:Charles Matthews hasn't bugged you on this it falls to me to do so. You've been sitting on your very nice piece about Cramer's paradox for ten months now, please elevate it to an article ASAP. --Vaughan Pratt (talk) 05:48, 1 May 2009 (UTC)
Desarguesian plane
Hi Encyclops -- you started out the
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The article
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Another Bellman winner
OK.
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Hello
it's me, Freddy! — Preceding unsigned comment added by 108.30.107.177 (talk) 22:11, 1 May 2014 (UTC)
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