From 9473aff90e957afeb8ee724f07640675d7a4129c Mon Sep 17 00:00:00 2001
From: aolingwen <747620155@qq.com>
Date: Fri, 12 Jul 2019 14:29:11 +0800
Subject: [PATCH] werwer

---
 logistic_regression.md | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/logistic_regression.md b/logistic_regression.md
index 4ad9c03..9f29f58 100644
--- a/logistic_regression.md
+++ b/logistic_regression.md
@@ -27,7 +27,9 @@ $$
 
 ### sigmoid函数
 
-$$sigmoid$$ 函数的公式为：$$\sigma(t)=1/1+e^{-t}$$。函数图像如下图所示：
+$$sigmoid$$函数的公式为：$$\sigma(t)=1/1+e^{-t}$$
+
+函数图像如下图所示：
 
 <div align=center><img src="./img/20.jpg", width=250, height=250/></div>