数学函数 (Azure Cosmos DB)Mathematical functions (Azure Cosmos DB)
每个数学函数均执行一个计算，基于作为参数提供的输出值，并返回数值。The mathematical functions each perform a calculation, based on input values that are provided as arguments, and return a numeric value.
可以运行以下示例所示的查询：You can run queries like the following example:
SELECT VALUE ABS(-4)
结果为：The result is:
[4]
函数Functions
以下支持的内置数学函数通常基于输入参数执行计算，并返回数值表达式。The following supported built-in mathematical functions perform a calculation, usually based on input arguments, and return a numeric expression.
除 RAND 外，所有数学函数都是确定性函数。All mathematical functions, except for RAND, are deterministic functions. 这意味着每次使用一组特定的输入值调用这些函数时，都返回相同的结果。This means they return the same results each time they are called with a specific set of input values.