User talk:Trevorgoodchild

Welcome!

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And don't forget, the edit summary is your friend. :) – Oleg Alexandrov (talk) 16:07, 29 February 2008 (UTC)

Note
I'd just like to say thank you for all the work you are doing with the CG page. Looks great! Adam McCormick 07:20, 7 March 2007 (UTC)
 * Oh and I love your Username reference Adam McCormick 07:21, 7 March 2007 (UTC)

On headings
Hi. I have a small note on style. One should use lowercase in sections names, so === Invariant formulations of div, grad, and curl ===

rather than

=== Invariant Formulations of Div, Grad, and Curl ===

This per the style manual. Just thought I'd let you know. You can reply here if you have comments. Cheers, Oleg Alexandrov (talk) 16:07, 29 February 2008 (UTC)


 * Thanks -- yep, I keep forgetting that's the rule. :) Trevorgoodchild (talk) 18:54, 29 February 2008 (UTC)

Cut and paste moves
You recently performed a page move (on Computer graphics) by cutting and pasting the content. This is against Wikipedia policy for copyright reasons, because when a page is moved that way it loses its edit history. I have fixed the moves - if you need to move articles in future, you should use the 'move' button at the top of the page instead (see WP:MOVE for more instructions, including how to get administrator assistance when the target page already exists). Regards, EyeSerene talk 14:13, 24 July 2008 (UTC)

Unspecified source for Image:Cornellbox pathtracing irradiancecaching.png
Thanks for uploading Image:Cornellbox pathtracing irradiancecaching.png. I noticed that the file's description page currently doesn't specify who created the content, so the copyright status is unclear. If you did not create this file yourself, then you will need to specify the owner of the copyright. If you obtained it from a website, then a link to the website from which it was taken, together with a restatement of that website's terms of use of its content, is usually sufficient information. However, if the copyright holder is different from the website's publisher, then their copyright should also be acknowledged.

As well as adding the source, please add a proper copyright licensing tag if the file doesn't have one already. If you created/took the picture, audio, or video then the GFDL-self tag can be used to release it under the GFDL. If you believe the media meets the criteria at Fair use, use a tag such as or one of the other tags listed at Image copyright tags. See Image copyright tags for the full list of copyright tags that you can use.

If you have uploaded other files, consider checking that you have specified their source and tagged them, too. You can find a list of files you have uploaded by following [ this link]. Unsourced and untagged images may be deleted one week after they have been tagged, as described on criteria for speedy deletion. If the image is copyrighted under a non-free license (per Fair use) then the image will be deleted 48 hours after 17:53, 24 July 2008 (UTC). If you have any questions please ask them at the Media copyright questions page. Thank you. Do you want to opt out of receiving this notice? --MifterBot (Talk • Contribs • Owner) 17:53, 24 July 2008 (UTC)

LCP
Regarding your latest change to Linear complementarity problem, are you sure it's correct to remove the qualifications on M? Although positive-definiteness is sufficient for the LCP to have a unique solution, it is possible to phrase a well-posed LCP with M indefinite, for instance, M = {{1, 0},{0,-1}} and b = {-1, 0}. Granted, for the practical applications I've seen M is usually semi-definite, but if we're making that assumption we should state it and hold to it throughout the article. TotientDragooned (talk) 03:55, 16 September 2008 (UTC)


 * Hmm... well, my reasoning is the following: the original sentence said, "Although any quadratic programming algorithm can solve an LCP...". When I saw "quadratic programming algorithm" I assumed it meant an algorithm for solving convex quadratic programs, since those are the only ones that you can really solve (if the problem's not convex then solving it is in general NP hard).  If that were the case, then only definite LCPs can be solved by such algorithms (because indefinite LCPs are not convex).  It is possible that the original author meant "quadratic programming algorithm" to refer to algorithms that also solve non-convex QPs, but that would seem a little silly: of course an algorithm for solving non-convex QPs can solve LCPs, because such an algorithm could be used to solve any NP complete problem!  In either case, I'll modify that sentence to make it clearer.
 * Looks good! Thanks. TotientDragooned (talk) 03:24, 17 September 2008 (UTC)

ArbCom elections are now open!
MediaWiki message delivery (talk) 16:31, 23 November 2015 (UTC)

commons:commons:deletion requests/Stanford Bunny images
Hi, thought I would let you know about this DR since the auto-notifier only works for uploaders at Commons, not the local uploaders of transwikied files (of which my understanding is that you are one, in this case). Cheers! Arlo James Barnes 23:05, 18 March 2022 (UTC)