mssql floor MySQL数学函数简明总结

mysql> select SIGN(PI()/2),ASIN(1)mssql floor,COS(PI()), ACOS(-1), TAN(PI()/4), ATAN(1), COT(0.5);

+--------------+--------------------+-----------+-------------------+--------------------+--------------------+-------------------+

| SIGN(PI()/2) | ASIN(1) | COS(PI()) | ACOS(-1) | TAN(PI()/4) | ATAN(1) | COT(0.5) |

+--------------+--------------------+-----------+-------------------+--------------------+--------------------+-------------------+

| 1 | 1.5707963267948966 | -1 | 3.141592653589793 | 0.9999999999999999 | 0.7853981633974483 | 1.830487721712452 |

+--------------+--------------------+-----------+-------------------+--------------------+--------------------+-------------------+

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