MySQL cos()函数

by · 2018-10-20

COS(X)

该函数返回X，X值是以弧度给出的余弦值。

mysql>SELECT COS(90);
+---------------------------------------------------------+
| COS(90)                                                 |
+---------------------------------------------------------+
| -0.44807361612917                                       |
+---------------------------------------------------------+
1 row in set (0.00 sec)

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