ATAN (Azure Cosmos DB)ATAN (Azure Cosmos DB)
适用于:
SQL API
返回角度(弧度),其正切是指定的数值表达式。Returns the angle, in radians, whose tangent is the specified numeric expression. 这也被称为反正切。This is also called arctangent.
语法Syntax
ATAN(<numeric_expr>)
参数Arguments
numeric_exprnumeric_expr
是一个数值表达式。Is a numeric expression.
返回类型Return types
返回一个数值表达式。Returns a numeric expression.
示例Examples
以下示例返回指定值的 ATAN
。The following example returns the ATAN
of the specified value.
SELECT ATAN(-45.01) AS atan
下面是结果集。Here is the result set.
[{"atan": -1.5485826962062663}]
备注Remarks
此系统函数不会使用索引。This system function will not utilize the index.