lambda

简明释义

[ˈlæmdə][ˈlæmdə]

n. 希腊字母的第11个;星座中第11颗星;λ噬菌体(基因研究中所用的噬菌体病毒);人字缝尖;(生化)λ链

n. (Lambda)(美)兰布达(人名)

复 数 l a m b d a s

英英释义

A symbol used in mathematics and computer science to represent an anonymous function or a function definition.

在数学和计算机科学中用于表示匿名函数或函数定义的符号。

In physics, it often denotes wavelength or the decay constant in radioactive decay.

在物理学中,它通常表示波长或放射性衰变中的衰变常数。

单词用法

use a lambda to define a function

使用lambda定义一个函数

pass a lambda as an argument

lambda作为参数传递

create a lambda expression

创建一个lambda表达式

lambda operator

λ操作符

lambda binding

λ绑定

lambda notation

λ符号

同义词

function

函数

In programming, a lambda expression is often used to create small, anonymous functions.

在编程中,lambda 表达式通常用于创建小的匿名函数。

anonymous function

匿名函数

Lambda functions are frequently utilized in functional programming languages.

在函数式编程语言中,lambda 函数被频繁使用。

closure

闭包

Closures can encapsulate variables from the surrounding scope, similar to how lambda functions operate.

闭包可以封装来自周围作用域的变量,类似于 lambda 函数的操作。

反义词

static

静态的

The static variable retains its value between function calls.

静态变量在函数调用之间保持其值。

constant

常量

A constant cannot be changed once it is assigned.

常量一旦赋值就不能被改变。

例句

1.Lambda functions by themselves don't add much in terms of something we couldn't do before.

lambda函数本身并没有添加以前不能执行的功能。

2.This is similar to a lambda and similar constructs used in many other languages.

这和其它语言中的Lambda表达式或类似结构相似。

3.The second line simply shows the lambda function bound to total.

第二行代码仅显示了这个和 total绑定到一起的lambda 表达式。

4.The first argument to lambda is the list of arguments the function can take.

lambda的第一个参数是函数可以取得的参数列表。

5.Now RubyMine's editor knows and understands the new lambda syntax, local variables semantics, etc.

现在RubyMine的编辑器知道并且理解了新的lambda语法、局部变量语义等。

6.An alternative to the use of a lambda in the assertion would have been.

在assertion中对lambda使用的替换可能是。

7.The lambda 拉姆达 calculus is fundamental in computer science and mathematical logic.

lambda 拉姆达演算在计算机科学和数学逻辑中是基础。

8.In AWS, you can run your code without provisioning servers using Lambda 无服务器计算.

在AWS中,你可以使用Lambda 无服务器计算运行你的代码而无需配置服务器。

9.In Python, you can create a small function using a lambda 匿名函数 expression.

在Python中,你可以使用lambda 匿名函数表达式创建一个小函数。

10.A lambda 拉姆达 expression can take any number of arguments but can only have one expression.

lambda 拉姆达表达式可以接受任意数量的参数,但只能有一个表达式。

11.You can use a lambda 匿名函数 to sort a list of tuples by the second element.

你可以使用lambda 匿名函数按元组的第二个元素对列表进行排序。

作文

In the world of programming and mathematics, the term lambda holds significant importance. Derived from the Greek alphabet, lambda (Λ, λ) is often used to represent anonymous functions in various programming languages. These functions are defined without a name and can be created on the fly, making them incredibly useful for short operations that do not require a full function declaration. For instance, in Python, a lambda function can be written as 'lambda x: x + 1', which increases the value of x by one. This simplicity allows developers to write cleaner and more concise code, especially when using functions like map, filter, or reduce.Moreover, the concept of lambda extends beyond programming into the realm of mathematics, where it is frequently used in calculus and linear algebra. In these fields, lambda often represents eigenvalues in matrix equations. Eigenvalues are critical in understanding the properties of linear transformations and play a vital role in various applications such as stability analysis, quantum mechanics, and even machine learning algorithms.The versatility of lambda functions is evident in functional programming languages like Haskell, where they are treated as first-class citizens. This means that lambda functions can be passed around as arguments, returned from other functions, and assigned to variables. Such capabilities enable programmers to create highly modular and reusable code, enhancing productivity and maintainability.In addition to its technical applications, the concept of lambda has also found its way into everyday language, particularly in discussions around efficiency and optimization. For example, when someone refers to a lambda approach in problem-solving, they often mean a method that is straightforward and effective, focusing on the essential elements without unnecessary complexity. This perspective aligns with the broader trend in software development towards minimalism and simplicity, where less is often more.Furthermore, the rise of cloud computing has popularized the use of lambda in the context of serverless architecture. Services like AWS Lambda allow developers to run code in response to events without provisioning or managing servers. This innovation has transformed the way applications are built and deployed, enabling rapid scaling and reducing operational costs. As businesses increasingly adopt cloud solutions, understanding the role of lambda becomes crucial for developers and architects alike.In conclusion, the term lambda encapsulates a wide range of concepts across different domains, from programming and mathematics to cloud computing and everyday problem-solving. Its ability to simplify complex tasks and enhance efficiency makes it a powerful tool in a developer's toolkit. As technology continues to evolve, the relevance of lambda will undoubtedly persist, shaping the future of programming and computational thinking. Therefore, grasping the essence of lambda is essential for anyone looking to thrive in the ever-changing landscape of technology.

在编程和数学的世界中,术语lambda具有重要意义。源自希腊字母,lambda(Λ,λ)常用于表示各种编程语言中的匿名函数。这些函数没有名称,可以随时创建,使其在不需要完整函数声明的短操作中非常有用。例如,在Python中,lambda函数可以写成'lambdax: x + 1',它将x的值增加1。这种简单性使开发人员能够编写更简洁的代码,特别是在使用map、filter或reduce等函数时。此外,lambda的概念不仅限于编程,还延伸到数学领域,在微积分和线性代数中经常使用。在这些领域中,lambda通常代表矩阵方程中的特征值。特征值在理解线性变换的性质方面至关重要,并在稳定性分析、量子力学甚至机器学习算法等各种应用中发挥着重要作用。lambda函数的多功能性在像Haskell这样的函数式编程语言中得到了体现,在这些语言中,它们被视为一等公民。这意味着lambda函数可以作为参数传递、从其他函数返回以及分配给变量。这种能力使程序员能够创建高度模块化和可重用的代码,提高了生产力和可维护性。除了技术应用,lambda的概念还渗透到日常语言中,特别是在讨论效率和优化时。例如,当有人提到问题解决中的lambda方法时,他们通常指的是一种简单有效的方法,专注于关键要素,而不涉及不必要的复杂性。这种观点与软件开发中向简约和简单性的广泛趋势相一致,在这种趋势中,少即是多。此外,云计算的兴起使得lambda在无服务器架构的背景下变得流行。像AWS Lambda这样的服务允许开发人员在不配置或管理服务器的情况下响应事件运行代码。这一创新改变了应用程序的构建和部署方式,实现了快速扩展并降低了运营成本。随着企业越来越多地采用云解决方案,了解lambda的作用对开发人员和架构师来说变得至关重要。总之,术语lambda涵盖了不同领域的广泛概念,从编程和数学到云计算和日常问题解决。它简化复杂任务和提高效率的能力使其成为开发人员工具箱中的强大工具。随着技术的不断发展,lambda的相关性无疑会持续存在,塑造编程和计算思维的未来。因此,掌握lambda的本质对于任何希望在不断变化的技术环境中蓬勃发展的个人来说都是必不可少的。