Functional languages get their name from the concept that programs should behave like mathematical functions; in other words, given a set of inputs, a function should always return the same output.
函数语言的名称源于这样一种概念：程序行为应该像数学函数一样；换句话说，给定一组输入，函数应始终返回相同的输出。
Functional languages rely on first-class functions (functions that can appear anywhere any other language construct can appear) as parameters and return values. Figure 3 illustrates this concept.
函数式语言依赖于一等函数(可在任何其他语言结构可能出现的地方出现的函数)作为参数和返回值。
A functional index can return any standard SQL type except for large objects.
除大型对象外，函数索引可以返回任何标准sql类型。
The functional mentality may derive from Riddle's decade designing bicycles before he decided to return to school.
这种强调功能性的心态可能来自于十年前里德尔决定重返校园时设计的自行车。
As with other traditional functional languages, Scala requires that functions (in this case a method) must always return a value.
与其他传统函数语言一样，Scala要求函数(在本例中为一个方法)必须始终返回一个值。
The operation of functional constrain function can return the importance degrees of a series of tasks in functional constrain graph, and they are the basis of how to select the coordination scheme.
通过功能约束函数的计算，得出功能约束图中一系列任务的重要度，以此为基础衡量各协同方案。
A product with a functional fault which would result in a product return.
产品存在功能性问题会引起退货。
A product with a functional fault which would result in a product return.
产品存在功能性问题会引起退货。
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