<?xml version="1.0" encoding="utf-8"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:sy="http://purl.org/rss/1.0/modules/syndication/"><channel><title>MagicLen</title><link>https://magiclen.org/tag/fractal/feed</link><description>多元化原創文章，內容包羅萬象，有程式語言、網站應用、軟體介紹、硬體介紹、作業系統、旅行遊記、專題採訪、益智問題、文學創作，以及作者們的知識分享和作品分享。</description><language>zh-TW</language><lastBuildDate>Wed, 8 Apr 2026 23:55:47 +0000</lastBuildDate><sy:updatePeriod>hourly</sy:updatePeriod><sy:updateFrequency>8</sy:updateFrequency><sy:updateBase>1970-01-01T00:00+00:00</sy:updateBase><item><title>一片雪花的周長比地球直徑還要長，面積卻比一枚硬幣還要小！？</title><link>https://magiclen.org/snowflake</link><description><![CDATA[    <img src="https://magiclen.org/wp-content/uploads/2018/09/pexels-photo-853132-220x162.jpg" srcset="https://magiclen.org/wp-content/uploads/2018/09/pexels-photo-853132-220x162.jpg 1x, https://magiclen.org/wp-content/uploads/2018/09/pexels-photo-853132-440x324.jpg 2x, https://magiclen.org/wp-content/uploads/2018/09/pexels-photo-853132-660x486.jpg 3x" alt="">
雪花是空中的水蒸氣凝華而成的，當空氣的溫度降低，水蒸氣變為超過飽和時，就會在以塵埃等物質作為結晶核，開始結晶，然後逐步長大形成雪花。單片雪花的大小通常在0.05至4.6毫米之間，重量則只有0.2~0.5克。如果我們想要計算雪花的周長和面積，該怎麼計算呢？]]></description><category>數學邏輯</category><category>碎形</category><category>科赫曲線</category><guid>https://magiclen.org/snowflake</guid><pubDate>Tue, 16 Oct 2018 12:00:11 +0800</pubDate><dc:creator>Magic Len</dc:creator></item></channel></rss>