User talk:Xiaodai~enwiki

Hi my name is Zhuo Jia Dai. My interests include soccer, computer games, mathematics and computer programming. I'm currently doing Bachelor of Computer Science at the university of sydney.

Hello Xiaodai, and welcome to the english Wikipedia. Here are some helpful pages:


 * Welcome, newcomers
 * How to edit a page

If you have further questions, feel free to ask them on


 * Village pump
 * My talk page

Have a lot of fun -- Cordyph 14:00 22 Jul 2003 (UTC)

Hello. Could you attend to the minor fix needed in the illustration accompanying the article titled mean value theorem? Thanks. (See the illustration's talk page for details.) Michael Hardy 22:01, 1 May 2004 (UTC)

WikiProject Sydney
Want to join? I'm still formulating policy. I see you live in Campsie - perhaps you could contribute to the Sydney suburbs thing we're trying to get off the ground! Incidently, there is a message board Australian wikipedians' notice board - Ta bu shi da yu 06:09, 23 Sep 2004 (UTC)

Football links
Hi Xiaodai,

Greetings from another USyd student.

There is a dedicated article for football around the world; this is the best place for links to national football articles, such as Football in China, rather than the overview article Football (soccer).

Cheers, --Daveb 12:31, 1 May 2005 (UTC)

Image copyright problem with Image:Sydney_FC_Home_Strip_05-06.png
Thanks for uploading Image:Sydney_FC_Home_Strip_05-06.png. However, the image may soon be deleted unless we can determine the copyright holder and copyright status. The Wikimedia Foundation is very careful about the images included in Wikipedia because of copyright law (see Wikipedia's Copyright policy).

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This is an automated notice by OrphanBot. If you have questions about copyright tagging of images, post on Wikipedia talk:Image copyright tags or User talk:Carnildo/images. 02:53, 2 March 2006 (UTC)

Great Deluge Algorithm
I'd updated the article a little bit, hopefully with relevant info. Destription of the algorithm would be quite helpful. Pavel Vozenilek 02:05, 8 October 2006 (UTC)

Unspecified source for Image:Mvt without text.png
Thanks for uploading Image:Mvt without text.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-no-disclaimers 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 02:56, 19 April 2007 (UTC). If you have any questions please ask them at the Media copyright questions page. Thank you. —Remember the dot (talk) 02:56, 19 April 2007 (UTC)

Image:Jen_and_me.JPG listed for deletion
An image or media file that you uploaded or altered, Image:Jen_and_me.JPG, has been listed at. Please look there to see why this is (you may have to search for the title of the image to find its entry), if you are interested in it not being deleted. Thank you. User:Gay Cdn (talk) (Contr) 19:18, 4 May 2007 (UTC)

Hello
I've seen your important contributions for the article Recurrence relation. I'm looking for the general (non-iterative) non-trigonometric expression for the exact trigonometric constants of the form: $$\begin{align}\cos \frac{\pi}{2^n}\end{align}$$, when n is natural (and is not given in advance). Do you know of any such general (non-iterative) non-trigonometric expression? (note that any exponential-expression-over-the-imaginaries is also excluded since it's trivially equivalent to a real-trigonometric expression). Eliko (talk) 08:26, 31 March 2008 (UTC)
 * Let me explain: if we choose n=1 then the term $$\begin{align}\cos \frac{\pi}{2^n}\end{align}$$ becomes "0", which is a simple (non-trigonometric) constant. If we choose n=2 then the term $$\begin{align}\cos \frac{\pi}{2^n}\end{align}$$ becomes $$\begin{align}\frac{1}{\sqrt{2}}\end{align}$$, which is again a non-trigonometric expression. etc. etc. Generally, for every natural n, the term $$\begin{align}\cos \frac{\pi}{2^n}\end{align}$$ becomes a non-trigonometric expression. However, when n is not given in advance, then the very expression $$\begin{align}\cos \frac{\pi}{2^n}\end{align}$$ per se - is a trigonometric expression. I'm looking for the general (non-iterative) non-trigonometric expression equivalent to $$\begin{align}\cos \frac{\pi}{2^n}\end{align}$$, when n is not given in advance. If not for the cosine - then for the sine or the tangent or the cotangent.

Possibly unfree File:Mvt.png
A file that you uploaded or altered, File:Mvt.png, has been listed at Possibly unfree files because its copyright status is unclear or disputed. If the file's copyright status cannot be verified, it may be deleted. You may find more information on the file description page. You are welcome to add comments to its entry at if you are interested in it not being deleted. Thank you. --Papa November (talk) 12:39, 7 June 2009 (UTC)

Nomination of Logix (programming language) for deletion
A discussion is taking place as to whether the article Logix (programming language) is suitable for inclusion in Wikipedia according to Wikipedia's policies and guidelines or whether it should be deleted.

The article will be discussed at Articles for deletion/Logix (programming language)(2nd nomination) until a consensus is reached, and anyone is welcome to contribute to the discussion. The nomination will explain the policies and guidelines which are of concern. The discussion focuses on good quality evidence, and our policies and guidelines.

Users may edit the article during the discussion, including to improve the article to address concerns raised in the discussion. However, do not remove the article-for-deletion template from the top of the article. causa sui (talk) 16:53, 31 July 2011 (UTC)

Your account will be renamed
Hello,

The developer team at Wikimedia is making some changes to how accounts work, as part of our on-going efforts to provide new and better tools for our users like cross-wiki notifications. These changes will mean you have the same account name everywhere. This will let us give you new features that will help you edit and discuss better, and allow more flexible user permissions for tools. One of the side-effects of this is that user accounts will now have to be unique across all 900 Wikimedia wikis. See the announcement for more information.

Unfortunately, your account clashes with another account also called Xiaodai. To make sure that both of you can use all Wikimedia projects in future, we have reserved the name Xiaodai~enwiki that only you will have. If you like it, you don't have to do anything. If you do not like it, you can pick out a different name. If you think you might own all of the accounts with this name and this message is in error, please visit Special:MergeAccount to check and attach all of your accounts to prevent them from being renamed.

Your account will still work as before, and you will be credited for all your edits made so far, but you will have to use the new account name when you log in.

Sorry for the inconvenience.

Yours, Keegan Peterzell Community Liaison, Wikimedia Foundation 03:28, 20 March 2015 (UTC)

Renamed
 This account has been renamed as part of single-user login finalisation. If you own this account you can |log in using your previous username and password for more information. If you do not like this account's new name, you can choose your own using this form after logging in: . -- Keegan (WMF) (talk) 20:38, 22 April 2015 (UTC)

ArbCom elections are now open!
MediaWiki message delivery (talk) 08:53, 23 November 2015 (UTC)