From fe5de04bde3fd065b034c1a0d9a5b07b36ae36a4 Mon Sep 17 00:00:00 2001
From: qiaolongfei <qiaolongfei@baidu.com>
Date: Tue, 19 Jun 2018 10:26:17 +0800
Subject: [PATCH] optimize doc for MomentumOptimizer

---
 python/paddle/fluid/optimizer.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/python/paddle/fluid/optimizer.py b/python/paddle/fluid/optimizer.py
index 8c402cf9d5..92ae5ee074 100644
--- a/python/paddle/fluid/optimizer.py
+++ b/python/paddle/fluid/optimizer.py
@@ -323,11 +323,11 @@ class MomentumOptimizer(Optimizer):
 
         & if (use\_nesterov):
 
-        &   param = param - gradient * learning\_rate + mu * velocity * learning\_rate
+        &\quad   param = param - gradient * learning\_rate + mu * velocity * learning\_rate
 
         & else:
 
-        &   param = param - learning\_rate * velocity
+        &\quad   param = param - learning\_rate * velocity
 
     Args:
         learning_rate (float|Variable): the learning rate used to update parameters. \
-- 
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