User talk:Huoyuanzi

August 2016
Hello, I'm JohnBlackburne. I wanted to let you know that one or more of your recent contributions to Lanczos algorithm have been undone because they appeared to be promotional. Advertising and using Wikipedia as a "soapbox" are against Wikipedia policy and not permitted. Take a look at the welcome page to learn more about Wikipedia. Thank you. JohnBlackburne wordsdeeds 19:20, 21 August 2016 (UTC)

Please do not add inappropriate external links to Wikipedia, as you did to LU decomposition. Wikipedia is not a collection of links, nor should it be used for advertising or promotion. Inappropriate links include, but are not limited to, links to personal websites, links to websites with which you are affiliated (whether as a link in article text, or a citation in an article), and links that attract visitors to a website or promote a product. See the external links guideline and spam guideline for further explanations. Because Wikipedia uses the nofollow attribute value, its external links are disregarded by most search engines. If you feel the link should be added to the page, please discuss it on the associated talk page rather than re-adding it. Thank you. JohnBlackburne wordsdeeds 19:46, 21 August 2016 (UTC)