unary

简明释义

英[ˈjuːnəri]美[ˈjuːnəri]

adj. [数] 一元的

英英释义

单词用法

同义词

反义词

例句

1.In the final example, the value of the HOME variable is tested to see if it is a directory using the -d unary operator.

在最后一个示例中，测试home变量的值，用单目操作符- d检查它是不是目录。

2.The closure rMultiply is a partial application that adapts the binary multiplication to be a unary closure by using a constant second operand.

闭包rMultiply 是个局部应用程序，通过使用一个不变的第二操作数，把二元乘法改变成一元闭包。

3.In Syntax 2, the - operator is used as the unary negation operator to indicate the negative value of an expression.

在语法2中，-运算符用作一元求反运算符，指示表达式的负值。

4.Unary representation of sparse polynomials and operations.

一元稀疏多项式的表示及运算。

5.Otherwise, a unary numeric operand remains as is and is not converted.

否则，一元数字操作数保留被转换或者不被转换。

6.Unary operators perform an operation on a single operand, such as returning the negative or positive value of a numeric expression.

一元运算符对单个操作数执行操作，如返回数值表达式的负值或正值。

7.In programming, a unary function can be defined to perform actions on a single input.

在编程中，一元函数可以定义为对单个输入执行操作。

8.In mathematics, a unary operation is an operation that takes only one operand.

在数学中，一元运算是只需要一个操作数的运算。

9.A unary predicate is a function that takes one argument and returns a boolean value.

一元谓词是一个接受一个参数并返回布尔值的函数。

10.The unary minus operator negates a single value.

一元负号运算符对单个值取反。

11.The concept of unary operations is crucial in functional programming languages.

一元运算的概念在函数式编程语言中至关重要。

作文

In the realm of mathematics and computer science, the term unary (一元) plays a crucial role in understanding various operations and functions. The concept of unary refers to operations that involve only one operand. This is in contrast to binary operations, which require two operands. The simplicity of unary operations makes them fundamental in many mathematical and programming contexts. For example, consider the operation of negation in mathematics. When we take a number and negate it, we are performing a unary operation. If we have the number 5, applying the negation operator results in -5. Here, we see that the operation involves only one number, making it a classic example of a unary function. Similarly, in programming, the increment operator (++) is another example of a unary operation. When applied to a variable, it increases its value by one without needing any additional inputs. Understanding unary operations is essential for grasping more complex mathematical concepts. For instance, in calculus, we often deal with unary functions when we analyze the behavior of single-variable functions. These functions can be represented graphically, and studying their properties helps us understand limits, derivatives, and integrals. Moreover, the significance of unary extends beyond pure mathematics into fields such as logic and computer science. In Boolean algebra, unary operators like NOT are used to manipulate truth values. A unary operator takes a single Boolean input and returns the opposite value. This is particularly useful in programming languages, where logical operations are common. In the context of data structures, unary operations can also be found in tree traversals. For instance, when we perform a depth-first search on a binary tree, we might encounter unary operations that process nodes individually before proceeding to their children. This highlights how unary operations can simplify complex processes by breaking them down into manageable parts. Furthermore, the use of unary operations is not limited to mathematics and programming; it also appears in everyday language. For instance, when we say "I love you," we are expressing a sentiment that involves one subject and one object, making it a unary expression of affection. This linguistic parallel shows how the concept of unary transcends disciplines, offering a deeper understanding of how we interact with the world around us. In conclusion, the term unary (一元) encapsulates a vital aspect of operations that involve a single operand. Whether in mathematics, programming, logic, or even language, unary operations serve as building blocks for more complex ideas. By comprehending the nature of unary functions and their applications, we gain valuable insights into both theoretical and practical aspects of various fields. As we continue to explore the intricacies of mathematics and computer science, the importance of unary cannot be understated, making it a key concept worthy of our attention and understanding.

在数学和计算机科学领域，术语unary（一元）在理解各种运算和函数时起着至关重要的作用。unary的概念指的是仅涉及一个操作数的运算。这与需要两个操作数的二元运算形成对比。unary运算的简单性使其在许多数学和编程上下文中成为基础。例如，考虑数学中的否定运算。当我们对一个数字进行否定时，我们正在执行一个unary运算。如果我们有数字5，应用否定运算符会得到-5。在这里，我们看到这个运算只涉及一个数字，使其成为unary函数的经典例子。同样，在编程中，自增运算符（++）是另一个unary运算的例子。当应用于一个变量时，它将该变量的值增加1，而无需任何额外的输入。理解unary运算对于掌握更复杂的数学概念至关重要。例如，在微积分中，当我们分析单变量函数的行为时，通常会处理unary函数。这些函数可以图形化表示，研究它们的性质有助于我们理解极限、导数和积分。此外，unary的意义不仅限于纯数学，还延伸到逻辑和计算机科学等领域。在布尔代数中，像NOT这样的unary运算符用于操纵真值。unary运算符接受一个布尔输入并返回相反的值。这在编程语言中尤其有用，因为逻辑运算是常见的。在数据结构的上下文中，unary运算也可以在树遍历中找到。例如，当我们对二叉树执行深度优先搜索时，可能会遇到处理单个节点的unary运算，然后再处理它们的子节点。这突显了unary运算如何通过将复杂过程分解为可管理的部分来简化复杂过程。此外，unary运算的使用并不限于数学和编程；它还出现在日常语言中。例如，当我们说“我爱你”时，我们表达了一种只涉及一个主体和一个宾语的情感，使其成为一种unary的爱意表达。这种语言上的类比展示了unary概念如何超越学科，为我们提供了更深入的理解，帮助我们与周围世界互动。总之，术语unary（一元）概括了涉及单个操作数的运算的重要方面。无论是在数学、编程、逻辑还是语言中，unary运算都是构建更复杂思想的基石。通过理解unary函数及其应用，我们获得了对各个领域理论和实践方面的宝贵见解。当我们继续探索数学和计算机科学的复杂性时，unary的重要性不容小觑，使其成为值得我们关注和理解的关键概念。