From 0b15d6de7efc2e55f0faf54c865c77368da6f395 Mon Sep 17 00:00:00 2001 From: unlockable Date: Sat, 22 Apr 2023 17:43:53 +0800 Subject: [PATCH] =?UTF-8?q?=E6=94=B9=E9=94=99=E3=80=82?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- 14多变量函数的微分学.tex | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/14多变量函数的微分学.tex b/14多变量函数的微分学.tex index 0708822..e7bb3b7 100644 --- a/14多变量函数的微分学.tex +++ b/14多变量函数的微分学.tex @@ -540,7 +540,7 @@ J_y \bvec{F} = \begin{bmatrix} 根据这个定理,我们可以引入Lagrange乘数法。定义函数$L: D \times \realnum^m \to \realnum$, \[L(\bvec{z}, \bvec{\Lambda}) = f(\bvec{z}) + \bvec{\lambda} \Phi(\bvec{z}), (\bvec{z}, \bvec{\Lambda}) \in D \times \realnum^m\] -$L$称为条件极值问题的Lagrange函数,$\bvec{\Lambda}$称为Lagrange乘数/乘子。根据条件极值的表要条件,在条件极值点$\bvec{z}_0 \in D$,存在$\bvec{\Lambda} \in \realnum^m$满足 +$L$称为条件极值问题的Lagrange函数,$\bvec{\Lambda}$称为Lagrange乘数/乘子。根据条件极值的必要条件,在条件极值点$\bvec{z}_0 \in D$,存在$\bvec{\Lambda} \in \realnum^m$满足 \[J_{\bvec{z}} L (\bvec{z}_0, \bvec{\Lambda}) = J_{\bvec{z}} f(\bvec{z}_0) + \bvec{\Lambda} J_{\bvec{z}}\Phi(\bvec{z}_0) = \bvec{0}\] 此外 \[J_{\bvec{\Lambda}} L(\bvec{z}_0, \bvec{\Lambda}) = \Phi(\bvec{z}_0) = \bvec{0}\]