yiguolei commented on code in PR #2604:
URL: https://github.com/apache/doris-website/pull/2604#discussion_r2235628868
##########
i18n/zh-CN/docusaurus-plugin-content-docs/current/sql-manual/sql-functions/scalar-functions/numeric-functions/sec.md:
##########
@@ -0,0 +1,54 @@
+---
+{
+ "title": "SEC",
+ "language": "zh-CN"
+}
+---
+
+## 描述
+
+返回 x 的正割值，x 为弧度值，仅支持输入输出为double。输入null值时会返回null。
+
+## 语法
+
+```sql
+SEC(<x>)
+```
+
+## 参数
+
+| 参数 | 说明 |
+| -- | -- |
+| `<x>` | 需要被计算正割值的值 |
+
+## 返回值
+
+返回 x 的正割值
Review Comment:
这个也标注出返回值的类型
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