From 71c61012a57b0428be284c8e7c67766fd689d67d Mon Sep 17 00:00:00 2001
From: Wang Xia <wangxia@nao.cas.cn>
Date: Tue, 7 Mar 2023 07:41:34 +0000
Subject: [PATCH] Update algorithm.rst

---
 docs/source/sls/algorithm.rst | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/docs/source/sls/algorithm.rst b/docs/source/sls/algorithm.rst
index 49a98f1..5d9a215 100644
--- a/docs/source/sls/algorithm.rst
+++ b/docs/source/sls/algorithm.rst
@@ -1,3 +1,6 @@
+.. role:: raw-math(raw)
+    :format: latex html
+
 SLS pipeline
 ============
 
@@ -102,13 +105,8 @@ reference file: readnoise file
 
 ERR数据单元构造误差数据，该步误差公式：
 
-.. math::
-
-\begin{displaymath}
-v = {\sigma}_1 \cdot {\sigma}_2
-\end{displaymath}
+:raw-math:`$$ \sigma = \sqrt{(SCI-bias)+{\sigma_bias}^2 + readnoise^2)} $$`
 
-\sigma = \sqrt{((SCI-bias)+\sigma^2 + readnoise^2)}
 
 **Dark correction**
 
-- 
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