TAN

描述

返回 x 的正切值，x 为弧度值

语法

TAN(<x>)

参数

参数	说明
`<x>`	需要被计算正切值的值

返回值

返回 x 的正切值

举例

select tan(0),tan(1),tan(-1);

+------------------------+------------------------+-------------------------+
| tan(cast(0 as DOUBLE)) | tan(cast(1 as DOUBLE)) | tan(cast(-1 as DOUBLE)) |
+------------------------+------------------------+-------------------------+
|                      0 |     1.5574077246549023 |     -1.5574077246549023 |
+------------------------+------------------------+-------------------------+

SQRT TANH