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MySQL radians()函式

2019-10-18 00:56:02

RADIANS(X)

這個函式返回X的弧度值，從度轉換為弧度。

mysql>SELECT RADIANS(90);
+---------------------------------------------------------+
| RADIANS(90)                                             |
+---------------------------------------------------------+
|1.570796                                                 |
+---------------------------------------------------------+
1 row in set (0.00 sec)