From 29735e3bb2b79a0520610adf4a1bbcb39c6091bc Mon Sep 17 00:00:00 2001
From: yuefoo <yuefoo@gmail.com>
Date: Wed, 2 Dec 2020 15:04:45 +0800
Subject: [PATCH] Update math-functions.md

the title of Mathematical Functions does not need translate to chinese.
---
 docs/zh/sql-reference/functions/math-functions.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/docs/zh/sql-reference/functions/math-functions.md b/docs/zh/sql-reference/functions/math-functions.md
index 81c2fcecdbc..6634b095b0d 100644
--- a/docs/zh/sql-reference/functions/math-functions.md
+++ b/docs/zh/sql-reference/functions/math-functions.md
@@ -76,7 +76,7 @@ SELECT erf(3 / sqrt(2))
 
 返回x的三角余弦值。
 
-## 谭(x) {#tanx}
+## tan(x) {#tanx}
 
 返回x的三角正切值。
 
@@ -88,7 +88,7 @@ SELECT erf(3 / sqrt(2))
 
 返回x的反三角余弦值。
 
-## 阿坦(x) {#atanx}
+## atan(x) {#atanx}
 
 返回x的反三角正切值。