第十五周前半。

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2023-06-03 16:09:23 +08:00
parent ba6965e1fb
commit 6b4f3eddbe
6 changed files with 216 additions and 6 deletions

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@@ -84,7 +84,7 @@
\begin{definition}
\[Jf(\bvec{x}) = (D_1 f(\bvec{x}), D_2f(\bvec{x}), \dots, D_n f(\bvec{x}))\]
并称它为函数$f$在点$\bvec{x}$处的Jacobian。函数的Jacobian也常记为$\gra f$$\nabla f$,即
并称它为函数$f$在点$\bvec{x}$处的Jacobian。函数的Jacobian也常记为$\gra f$$\gradient f$,即
\[\gra f(\bvec{x}) = J f(\bvec{x})\]
称之为数量函数$f$的梯度。
\end{definition}