- 类别:
数值函数 (三角函数)
COT¶
计算其实参的余切值;实参应以弧度表示。
语法¶
COT( <real_expr> )
示例¶
SELECT COT(0), COT(PI()/3), COT(RADIANS(90)); --------+--------------+------------------+ COT(0) | COT(PI()/3) | COT(RADIANS(90)) | --------+--------------+------------------+ inf | 0.5773502692 | 6.123233996e-17 | --------+--------------+------------------+