https://www.chenk.top/zh/tags/rotation/Recent content in Rotation on Chen Kai BlogHugozh-CNWed, 15 Jan 2025 09:00:00 +0000https://www.chenk.top/zh/linear-algebra/03-%E7%9F%A9%E9%98%B5%E4%BD%9C%E4%B8%BA%E7%BA%BF%E6%80%A7%E5%8F%98%E6%8D%A2/Wed, 15 Jan 2025 09:00:00 +0000https://www.chenk.top/zh/linear-algebra/03-%E7%9F%A9%E9%98%B5%E4%BD%9C%E4%B8%BA%E7%BA%BF%E6%80%A7%E5%8F%98%E6%8D%A2/<h2 id="核心思想" class="heading-anchor">核心思想<a href="#%e6%a0%b8%e5%bf%83%e6%80%9d%e6%83%b3" class="heading-link" aria-label="Permalink to this section" title="Copy link to this section">#</a> </h2><p>翻开一本传统教材，矩阵通常被描述为“数字排成的矩形阵列”。你会学到如何加法、乘法甚至求逆，但没人告诉你<strong>为什么</strong>乘法规则是这样设计的，也没人解释<strong>为什么</strong> <span class="math-inline">$AB$</span> 通常不等于 <span class="math-inline">$BA$</span> 。</p>