From 25a525bb092a09ef23df1ca20462cd3ee18434bf Mon Sep 17 00:00:00 2001
From: gaoyuan <yuan.gao@noplz.name>
Date: Tue, 14 Mar 2017 11:09:49 +0800
Subject: [PATCH] Fix annotation

---
 paddle/gserver/layers/CostLayer.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/paddle/gserver/layers/CostLayer.h b/paddle/gserver/layers/CostLayer.h
index 2f85fd3ec..c2b780371 100644
--- a/paddle/gserver/layers/CostLayer.h
+++ b/paddle/gserver/layers/CostLayer.h
@@ -164,8 +164,8 @@ public:
  * tasks.
  * \f[
  * L =
- *   y         / -1 < y < 1 /
- *   sign(y)   / otherwise  /
+ *   output - label         / -1 < (output - label) < 1 /
+ *   sign(output - label)   / otherwise  /
  * \f]
  */
 class SmoothL1CostLayer : public CostLayer {
-- 
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