<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[RSS Feed]]></title><description><![CDATA[RSS Feed]]></description><link>http://direct.ecency.com</link><image><url>http://direct.ecency.com/logo512.png</url><title>RSS Feed</title><link>http://direct.ecency.com</link></image><generator>RSS for Node</generator><lastBuildDate>Mon, 13 Apr 2026 17:30:15 GMT</lastBuildDate><atom:link href="http://direct.ecency.com/created/cn-math/rss.xml" rel="self" type="application/rss+xml"/><item><title><![CDATA[解題小工具 - 輕鬆解答數學比賽最新題目 / A simple tool to tackle the latest math competition]]></title><description><![CDATA[每一次我也相當期待 @kenchung 的數學比賽，因為我喜歡用不同的方法解答問題。可是我的程式語言並不好，寫短短的語言可能要花大半天時間，有一些人也可能因此沒有參加這比賽。這是非常可惜的。這一次的題目是要從十多個的方程式去把未知數尋找出來。?簡單的方法是把所有的方程式寫出來，然後把他們加加減減，把逐一個未知數找出來。第二個方法是用程式暴力解題。我看了題目便認為有可能用 Excel 的 Add-in]]></description><link>http://direct.ecency.com/cn/@wilkinshui/a-simple-tool-to-tackle-the-latest-math-competition</link><guid isPermaLink="true">http://direct.ecency.com/cn/@wilkinshui/a-simple-tool-to-tackle-the-latest-math-competition</guid><category><![CDATA[cn]]></category><dc:creator><![CDATA[wilkinshui]]></dc:creator><pubDate>Mon, 28 Aug 2017 05:17:00 GMT</pubDate><enclosure url="https://images.ecency.com/p/vM1pGHgNcyCiaxZmdb555hkjecmqomntNdRp7jgAhT1Kh1RdvnGCP5XoSxWfdUa4SE3SHdnPvfRSb9s99Y7cbfoF5bxjA4p36Bcqrknk7eYG3kStGaLnb4onXRaCtq99dx1RU7Y?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Paradox is fun! #2 - Will you switch the door? 趣味悖論 #2 - 你會換另一道門嗎?]]></title><description><![CDATA[The Game Time! 遊戲時間! Imagine that you are participating in a game show. There are 3 doors in front of you. Only 1 of the 3 doors has a Benz behind while there is nothing behind the other 2 doors. The host]]></description><link>http://direct.ecency.com/math/@manfredcml/paradox-is-fun-2-will-you-switch-the-door-2</link><guid isPermaLink="true">http://direct.ecency.com/math/@manfredcml/paradox-is-fun-2-will-you-switch-the-door-2</guid><category><![CDATA[math]]></category><dc:creator><![CDATA[manfredcml]]></dc:creator><pubDate>Tue, 27 Jun 2017 11:34:42 GMT</pubDate><enclosure url="https://images.ecency.com/p/2gsjgna1uruvUuS7ndh9YqVwYGPLVszbFLwwpAYXYNaY4wUp8kr4xSRkY2BuueAC5YxKD2qZYJpYrD9Y8e2mnA1MwyZXCzpJqihvMW28K8b6VEoktE?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[No solution! #2 - P vs NP Problem / 無解 #2 - P vs NP問題]]></title><description><![CDATA[Here comes the 2nd post of this series. We will look at the famous P vs NP problem in computer science this time! 這是「無解」系列的第二篇文章。這次我們會看看在計算機科學中有名的P vs NP問題! Proposers of P vs NP Problem (Left: Professor]]></description><link>http://direct.ecency.com/math/@manfredcml/no-solution-2-p-vs-np-problem-2-p-vs-np</link><guid isPermaLink="true">http://direct.ecency.com/math/@manfredcml/no-solution-2-p-vs-np-problem-2-p-vs-np</guid><category><![CDATA[math]]></category><dc:creator><![CDATA[manfredcml]]></dc:creator><pubDate>Mon, 26 Jun 2017 12:34:24 GMT</pubDate><enclosure url="https://images.ecency.com/p/qjrE4yyfw5pQYiuVvgYiUBP16WHGGN7UNn1BCdGdbV8z2VUq2LQL1jubKPunahB29nBMGpiiCMbszZkGA36K8EkThZNcH1a78boXnTdh8w7mn8TsX9cQ7E2S?format=match&amp;mode=fit" length="0" type="false"/></item></channel></rss>