COT()
函数说明
COT() 函数返回输入参数(用弧度表示)的余切值。
函数语法
> COT(number)
参数释义
参数 | 说明 |
---|---|
number | 必要参数,可取任意数值数据类型 |
示例
mysql> SELECT COT(12);
+---------------------+
| cot(12) |
+---------------------+
| -1.5726734063976895 |
+---------------------+
1 row in set (0.00 sec)
drop table if exists t1;
create table t1(a int,b float);
insert into t1 values(1,3.14159);
insert into t1 values(-1,12);
mysql> select cot(a), cot(b) from t1;
+---------------------+---------------------+
| cot(a) | cot(b) |
+---------------------+---------------------+
| 0.6420926159343306 | -394449.0619219334 |
| -0.6420926159343308 | -1.5726734063976895 |
+---------------------+---------------------+
2 rows in set (0.01 sec)