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RADIANS(x)

RADIANS(x) 用于将参数 x 由角度转化为弧度

mysql> SELECT RADIANS(90), RADIANS(180);+--------------------+-------------------+| RADIANS(90)        | RADIANS(180)      |+--------------------+-------------------+| 1.5707963267948966 | 3.141592653589793 |+--------------------+-------------------+

 

 

 

    

RADIANS(x)