TAN

説明

xの正接を返します。xはラジアン単位の値です。

構文

TAN(<x>)

パラメータ

Parameter	デスクリプション
<x>	タンジェントを計算する値

Return Value

xのタンジェントを返します。

Special Cases

• xがNaNの場合、NaNを返します
• xが正または負の無限大の場合、NaNを返します
• xがNULLの場合、NULLを返します

Example

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 |
+------------------------+------------------------+-------------------------+

select tan(cast('nan' as double));

+----------------------------+
| tan(cast('nan' AS DOUBLE)) |
+----------------------------+
| NaN                        |
+----------------------------+

select tan(cast('inf' as double));

+----------------------------+
| tan(cast('inf' AS DOUBLE)) |
+----------------------------+
| NaN                        |
+----------------------------+

select tan(cast('-inf' as double));

+-----------------------------+
| tan(cast('-inf' AS DOUBLE)) |
+-----------------------------+
| NaN                         |
+-----------------------------+