From de2db9d5a640cec68f8bfc904a05305c413d3230 Mon Sep 17 00:00:00 2001
From: hedongdong <hedongdong@huawei.com>
Date: Fri, 29 Jan 2021 16:07:28 +0800
Subject: [PATCH] [Docs] Correct formula in the description of operator Elu

---
 mindspore/ops/operations/nn_ops.py | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/mindspore/ops/operations/nn_ops.py b/mindspore/ops/operations/nn_ops.py
index 9f38217259f..2c95a2eda87 100644
--- a/mindspore/ops/operations/nn_ops.py
+++ b/mindspore/ops/operations/nn_ops.py
@@ -538,10 +538,11 @@ class Elu(PrimitiveWithInfer):
 
     .. math::
 
-        \text{x} = \begin{cases}
-        \alpha * (\exp(\text{x}) - 1), & \text{if x} < \text{0;}\\
-        \text{x}, & \text{if x} >= \text{0.}
-        \end{cases}
+        \text{ELU}(x)= \left\{
+        \begin{array}{align}
+            \alpha(e^{x}  - 1) & \text{if } x \le 0\\
+            x & \text{if } x \gt 0\\
+        \end{array}\right.
 
     The data type of input tensor must be float.