<div style="padding:40px;color:#cbccc6"><h1>雅可比矩阵（局部线性化）</h1><p>非线性映射 (sin x, cos y) 在某点的 Jacobian。</p><div style="padding:20px;background:#0d1017;border-left:3px solid #ffb454"><span class="katex-error" title="ParseError: KaTeX parse error: Expected 'EOF', got '&' at position 42: …l f/\\partial x&̲\\partial f/\\p…" style="color:#cc0000">J=\\begin{pmatrix}\\partial f/\\partial x&\\partial f/\\partial y\\end{pmatrix}</span></div><p style="color:#707a8c">该页面需要 JavaScript 进行交互式可视化。</p></div>