From 8f66146d23328ee4e9b9a0f2b5180940245bdcb4 Mon Sep 17 00:00:00 2001
From: kjlintong <979866078@qq.com>
Date: Fri, 26 Jul 2019 15:34:11 +0800
Subject: [PATCH] =?UTF-8?q?Update=2011=E3=80=81=E6=80=BB=E7=BB=93.md?=
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---
 "doc/11\343\200\201\346\200\273\347\273\223.md" | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git "a/doc/11\343\200\201\346\200\273\347\273\223.md" "b/doc/11\343\200\201\346\200\273\347\273\223.md"
index 1e50126..3a0c450 100644
--- "a/doc/11\343\200\201\346\200\273\347\273\223.md"
+++ "b/doc/11\343\200\201\346\200\273\347\273\223.md"
@@ -8,4 +8,5 @@
 
 记住两个向量 x 和 x`间的欧氏距离：
 
-                              
+
+$$ d_{\mathbf{A}}\left(\mathbf{x},\mathbf{x}^{\prime}\right)=\left\|\mathbf{x}-\mathbf{x}^{\prime}\right\| \mathbf{A} \stackrel{\mathrm{def}}{=} \sqrt{\left(\mathbf{x}-\mathbf{x}^{\prime}\right)^{\top} \mathbf{A}\left(\mathbf{x}-\mathbf{x}^{\prime}\right)} $$