<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:media="http://search.yahoo.com/mrss/"><channel><title>Calculus of Variations on A Moment's Rest</title><link>https://blog.a-moment.top/zh/tags/calculus-of-variations/</link><description>Recent content in Calculus of Variations on A Moment's Rest</description><generator>Hugo -- gohugo.io</generator><image><url>https://blog.a-moment.top/coffee.png</url><title>A Moment's Rest</title><link>https://blog.a-moment.top/zh/tags/calculus-of-variations/</link></image><language>zh</language><lastBuildDate>Tue, 22 Sep 2026 07:47:05 +0000</lastBuildDate><atom:link href="https://blog.a-moment.top/zh/tags/calculus-of-variations/index.xml" rel="self" type="application/rss+xml"/><item><title>关于泛函导数和变分法-来自相场公式推导的问题</title><link>https://blog.a-moment.top/zh/posts/math_note/functional_derivative/</link><pubDate>Sat, 04 Jan 2025 00:00:00 +0800</pubDate><guid>https://blog.a-moment.top/zh/posts/math_note/functional_derivative/</guid><category>Calculus of Variations</category><category>Note</category><media:thumbnail url="https://blog.a-moment.top/images/HelloWorld-r-906.jpg"/><description>&lt;img src="https://blog.a-moment.top/images/HelloWorld-r-906.jpg" alt="Featured image of post 关于泛函导数和变分法-来自相场公式推导的问题" /&gt;&lt;p&gt;&lt;em&gt;本文系拾人牙慧之作，仅为解决公式推导过程中的一些边角料的数学问题，内容如有错漏还请谅解。另外，感谢老大中先生的《变分法基础》第三版。本文的主要内容几乎全部参考本书。&lt;/em&gt;&lt;/p&gt;</description></item></channel></rss>