From 7f27b2f0f0b6c22f999fa93247eb4b05c70adc84 Mon Sep 17 00:00:00 2001
From: Aston Zhang <asv325@gmail.com>
Date: Mon, 2 Apr 2018 22:32:34 +0000
Subject: [PATCH] math

---
 chapter_appendix/math.md | 2 --
 1 file changed, 2 deletions(-)

diff --git a/chapter_appendix/math.md b/chapter_appendix/math.md
index 7d73f09..2daa448 100644
--- a/chapter_appendix/math.md
+++ b/chapter_appendix/math.md
@@ -13,5 +13,3 @@ $$\nabla_\mathbf{x} f(\mathbf{x}) = \bigg[\frac{\partial f(\mathbf{x})}{\partial
 为表示简洁，我们有时用$\nabla f(\mathbf{x})$代替$\nabla_\mathbf{x} f(\mathbf{x})$。
 
 ### 泰勒展开
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