monad
简明释义
英[ˈmɒnæd;ˈməʊnæd]美[ˈmɑːnædˌˈmoʊnæd]
n. 单子;单孢体;单细胞生物;一价物;单轴
英英释义
单词用法
思想的单子 | |
单子结构 | |
哲学中的单子 | |
单子的概念 | |
函数式编程中的单子 | |
单子操作 |
同义词
反义词
二元组 | 一个二元组由两个元素组成。 | ||
多元组 | In mathematics, a polyad can refer to a structure with multiple components. | 在数学中,多元组可以指具有多个组件的结构。 |
例句
1.To go further, introducing something like a Parser monad is a favorite example of mine.
更进一步,将像一个解析器的单子是我最喜欢的例子。
2.Is there a monad that doesn't have a corresponding monad transformer (except IO)?
是有一个单子,没有相应的单子转换器(除IO) ?
3.It's not a monad, but what is it?
这不是一个单子,但它是什么?
4.But it's just one monad. As you've mentioned, Failure shows up in LINQ, but more sophisticated monads are useful even in a side-effecting language.
但这只是一个单子。如你所说,失败的LINQ出现,但更复杂的实体,即使在副作用的语言是有用的。
5.I am not a monad master by any means, but I feel similarly about mondads as I do about multi-methods and macros.
我不能算是精通monad,但是我觉得mondads和multi-methods及macros都差不多。
6.For Leibniz, a Monad is part of a fundamental multiplicity and each one, within its heart, carries all the information of the universe in a single, stable form.
在莱布尼茨看来,单子就是组成复合物的基础实体,每一个单子内部都以一种单纯、稳定的方式储存了宇宙的全部信息。
7.The Maybe monad 单子 is used to represent computations that might fail.
Maybe monad 单子 用于表示可能失败的计算。
8.In functional programming, a monad 单子 is a design pattern used to handle side effects.
在函数式编程中,monad 单子 是一种用于处理副作用的设计模式。
9.The monad 单子 structure allows for chaining operations in a clean manner.
这种 monad 单子 结构允许以简洁的方式链接操作。
10.You can think of a monad 单子 as a container that holds a value and provides functions to manipulate it.
你可以把 monad 单子 想象成一个容器,里面装着一个值,并提供函数来操作它。
11.In Haskell, the monad 单子 type class defines how to combine computations.
在 Haskell 中,monad 单子 类型类定义了如何组合计算。
作文
In the realm of philosophy and computer science, the term monad (单子) holds significant importance. Philosophically, a monad refers to a simple, indivisible entity that represents a fundamental unit of existence. This concept was notably introduced by the German philosopher Gottfried Wilhelm Leibniz in the 17th century. Leibniz proposed that the universe is composed of countless monads, each acting as a unique, self-contained unit that reflects the entire universe from its own perspective. This idea challenges traditional notions of substance and encourages a more nuanced understanding of reality, where each monad interacts with others in a harmonious yet independent manner.In the context of computer science, particularly in functional programming, a monad is a design pattern used to handle computations in a specific way. It provides a framework for chaining operations together while managing side effects. The essence of a monad in programming can be understood through three primary components: a type constructor, a unit function, and a bind function. The type constructor defines the type of the monad, while the unit function, often referred to as 'return', wraps a value into the monad. The bind function, denoted as '>>=', allows for the sequencing of operations within the monad, enabling developers to write cleaner and more maintainable code.To illustrate the concept of a monad in programming, consider the Maybe monad. In many programming languages, operations on values can lead to errors or unexpected results if a value is absent. The Maybe monad addresses this issue by encapsulating a value that may or may not be present. When using the Maybe monad, developers can safely perform computations without constantly checking for null or undefined values. This leads to more robust code and reduces the likelihood of runtime errors.Furthermore, the concept of a monad extends beyond just handling errors. It also provides a way to manage state, perform asynchronous operations, and even implement input/output functionalities in a purely functional manner. For example, the State monad allows programmers to thread state through a series of computations without resorting to mutable variables. Similarly, the IO monad enables side-effecting operations like reading from or writing to files while maintaining the purity of functions.In conclusion, the term monad (单子) serves as a bridge between philosophical thought and practical programming techniques. Whether discussing the indivisible units of existence proposed by Leibniz or the powerful abstractions in functional programming, monad represents a profound concept that encourages deeper thinking about both the nature of reality and the structure of code. Understanding monads can significantly enhance one's ability to write elegant and efficient programs while also providing a philosophical perspective on the interconnectedness of all things. As we delve into the intricacies of monads, we uncover a world where simplicity and complexity coexist, offering insights that are both intellectually stimulating and practically beneficial.
在哲学和计算机科学的领域中,术语monad(单子)具有重要意义。从哲学上讲,monad指的是一个简单的、不可分割的实体,代表存在的基本单位。这个概念最初是由17世纪的德国哲学家戈特弗里德·威廉·莱布尼茨提出的。莱布尼茨认为,宇宙由无数个monads组成,每个monad作为一个独特的自包含单位,从自己的角度反映整个宇宙。这个思想挑战了传统的物质观,并鼓励人们对现实进行更细致的理解,其中每个monad以和谐而独立的方式与其他monad相互作用。在计算机科学的背景下,特别是在函数式编程中,monad是一种用于以特定方式处理计算的设计模式。它提供了一个将操作串联在一起的框架,同时管理副作用。在编程中,monad的本质可以通过三个主要组成部分来理解:类型构造器、单位函数和绑定函数。类型构造器定义了monad的类型,而单位函数,通常称为'return',将一个值包装到monad中。绑定函数,表示为'>>=',允许在monad内序列化操作,使开发人员能够编写更简洁和可维护的代码。为了说明编程中monad的概念,可以考虑Maybe monad。在许多编程语言中,对值的操作可能会导致错误或意外结果,如果值缺失。Maybe monad通过封装一个可能存在或不存在的值来解决这个问题。在使用Maybe monad时,开发人员可以安全地执行计算,而无需不断检查null或未定义值。这导致更强健的代码并减少运行时错误的可能性。此外,monad的概念不仅限于处理错误。它还提供了一种管理状态、执行异步操作甚至以纯函数方式实现输入/输出功能的方法。例如,State monad允许程序员在一系列计算中传递状态,而无需诉诸可变变量。同样,IO monad使得像读取或写入文件这样的副作用操作成为可能,同时保持函数的纯度。总之,术语monad(单子)作为哲学思想与实用编程技术之间的桥梁。无论是讨论莱布尼茨提出的不可分割的存在单位,还是功能编程中的强大抽象,monad代表了一个深刻的概念,鼓励人们对现实的本质和代码的结构进行更深入的思考。理解monads可以显著增强一个人编写优雅高效程序的能力,同时也提供了一个关于万物相互联系的哲学视角。当我们深入研究monads的复杂性时,我们揭示了一个简单与复杂共存的世界,提供了既具有智力刺激又具有实用价值的见解。