<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:content="http://purl.org/rss/1.0/modules/content/"><channel><title>数学 on zo0043</title><link>http://blog.zero43.top/tags/%E6%95%B0%E5%AD%A6/</link><description>Recent content in 数学 on zo0043</description><image><title>zo0043</title><url>https://i.postimg.cc/7hwBy7VS/calcr.png</url><link>https://i.postimg.cc/7hwBy7VS/calcr.png</link></image><generator>Hugo -- 0.130.0</generator><language>zh</language><copyright>©2024 zo0043</copyright><lastBuildDate>Thu, 08 Oct 2026 00:00:00 +0000</lastBuildDate><atom:link href="http://blog.zero43.top/tags/%E6%95%B0%E5%AD%A6/index.xml" rel="self" type="application/rss+xml"/><item><title>一笔数学：亏一半要赚一倍才回本</title><link>http://blog.zero43.top/escape/%E4%B8%80%E7%AC%94%E6%95%B0%E5%AD%A6%E4%BA%8F%E4%B8%80%E5%8D%8A%E8%A6%81%E8%B5%9A%E4%B8%80%E5%80%8D%E6%89%8D%E5%9B%9E%E6%9C%AC/</link><pubDate>Thu, 08 Oct 2026 00:00:00 +0000</pubDate><guid>http://blog.zero43.top/escape/%E4%B8%80%E7%AC%94%E6%95%B0%E5%AD%A6%E4%BA%8F%E4%B8%80%E5%8D%8A%E8%A6%81%E8%B5%9A%E4%B8%80%E5%80%8D%E6%89%8D%E5%9B%9E%E6%9C%AC/</guid><description>亏损的数学不对称：-50% 要 +100% 回本，-70% 要 +233%。</description></item><item><title>期望值与破产：仓位是算术问题</title><link>http://blog.zero43.top/escape/%E6%9C%9F%E6%9C%9B%E5%80%BC%E4%B8%8E%E7%A0%B4%E4%BA%A7%E4%BB%93%E4%BD%8D%E6%98%AF%E7%AE%97%E6%9C%AF%E9%97%AE%E9%A2%98/</link><pubDate>Thu, 08 Oct 2026 00:00:00 +0000</pubDate><guid>http://blog.zero43.top/escape/%E6%9C%9F%E6%9C%9B%E5%80%BC%E4%B8%8E%E7%A0%B4%E4%BA%A7%E4%BB%93%E4%BD%8D%E6%98%AF%E7%AE%97%E6%9C%AF%E9%97%AE%E9%A2%98/</guid><description>决策看「做很多次平均赚不赚」；另有一条硬边界：一次极端亏损归零，就没有机会等平均了。</description></item></channel></rss>