pi

简明释义

英[paɪ]美[paɪ]

abbr. 产品改进（product improve）；预估发票，形式发票（proforma invoice）；首席研究员（principal investigator）

英英释义

单词用法

同义词

反义词

例句

1.He recited PI from memory to 22, 514 digits.

他凭记忆背诵圆周率到22 514位。

2.The key is the stylesheet processing instruction (PI) in the second line.

关键是第二行中的样式表处理指令（PI）。

3.This fine tirade sounded, however, to the ungodly sailor-boy like a mere Pippi-pi.

然而，对这只不听话的小云雀来说，这番长篇大论听起来就是“叽叽喳喳”。

4.pi -- Pages paged in from paging space.

pi——从页面空间读取的页面。

5.When the PI virtualizer is present, use this VM argument.

当PI virtualizer存在时，使用这个VM参数。

6.And this will be called pi of 2py molecular orbital.

我们会称它为2py分子轨道上的π键。

7.Indexes: 2 PI INPUT_MESSAGE (5) : the process instance input message.

索引数量：2pi INPUT_MESSAGE(5)：流程实例输入消息。

8.Pi Day -march 14th, 2010.

2010年3月14日：圆周率日。

9.The symbol for pi 圆周率 is π.

pi 圆周率 的符号是π。

10.You can find pi 圆周率 in many formulas related to circles.

在许多与圆相关的公式中都可以找到pi 圆周率。

11.The value of pi is approximately 3.14.

数字pi的值大约是3.14。

12.To find the area of a circle, you multiply pi 圆周率 by the radius squared.

要计算圆的面积，你需要将pi 圆周率 乘以半径的平方。

13.In mathematics, pi 圆周率 is used to calculate the circumference of a circle.

在数学中，pi 圆周率 用于计算圆的周长。

作文

The concept of pi (圆周率) is one of the most fascinating and essential elements in mathematics. Defined as the ratio of a circle's circumference to its diameter, pi is an irrational number, which means it cannot be expressed as a simple fraction. Its decimal representation goes on infinitely without repeating, starting with 3.14159. This unique property of pi has intrigued mathematicians for centuries and continues to be a subject of study and exploration. In geometry, pi plays a crucial role in calculations involving circles. For instance, to find the area of a circle, one must use the formula A = pir², where 'r' represents the radius. This formula showcases how pi is not just a number, but a fundamental constant that connects various aspects of mathematics. The significance of pi extends beyond pure mathematics; it appears in physics, engineering, and even statistics. One of the most interesting aspects of pi is its appearance in various formulas across different fields. For example, in physics, pi is involved in calculations related to waves and oscillations. The famous Einstein's field equations in general relativity also incorporate pi, demonstrating its importance in understanding the fabric of the universe. Moreover, the quest to calculate pi to more decimal places has become a popular challenge among mathematicians and computer scientists. With the advent of modern computing technology, pi has been calculated to trillions of digits. Each new digit of pi discovered represents not only a mathematical achievement but also a testament to human ingenuity and the pursuit of knowledge. Culturally, pi has made its mark as well. March 14th is celebrated as Pi Day (3/14) around the world, where math enthusiasts gather to celebrate this remarkable number. On this day, people often indulge in pie-eating contests, pun competitions, and educational activities centered around mathematics. This cultural phenomenon highlights how pi transcends the realm of mathematics and enters the public consciousness. In conclusion, pi (圆周率) is not merely a mathematical constant; it is a symbol of the beauty and complexity of mathematics itself. Its applications span across various disciplines, influencing both theoretical and practical aspects of science and engineering. The infinite nature of pi invites continuous exploration and discovery, making it a source of inspiration for mathematicians and enthusiasts alike. Understanding pi is essential for anyone looking to grasp the deeper concepts in mathematics and its applications in the real world. As we continue to explore the mysteries of pi, we also uncover the endless possibilities that mathematics offers to humanity.

“圆周率”这一概念是数学中最迷人和重要的元素之一。它被定义为圆的周长与直径的比率，pi是一个无理数，这意味着它不能被简单的分数表示。它的小数表示是无限的，没有重复，从3.14159开始。pi的这一独特属性吸引了几个世纪以来的数学家，并继续成为研究和探索的主题。在几何学中，pi在涉及圆的计算中发挥着至关重要的作用。例如，要找到一个圆的面积，必须使用公式A = pir²，其中'r'表示半径。这个公式展示了pi不仅仅是一个数字，而是一个基本常数，它连接着数学的各个方面。pi的重要性超越了纯数学；它出现在物理学、工程学甚至统计学中。pi最有趣的方面之一是它在不同领域的各种公式中的出现。例如，在物理学中，pi涉及与波动和振荡相关的计算。著名的爱因斯坦广义相对论场方程也包含了pi，这表明它在理解宇宙结构中的重要性。此外，计算pi更多小数位的追求已成为数学家和计算机科学家们的热门挑战。随着现代计算技术的出现，pi已经被计算到万亿位。每发现一位新的pi数字不仅代表着数学成就，也证明了人类的聪明才智和对知识的追求。在文化上，pi也留下了深刻的印记。3月14日被全球庆祝为Pi Day（π日），在这一天，数学爱好者聚集在一起庆祝这个非凡的数字。在这一天，人们常常参与吃派比赛、双关语比赛以及围绕数学的教育活动。这一文化现象突显了pi如何超越数学领域，进入公众意识。总之，pi（圆周率）不仅仅是一个数学常数；它是数学之美和复杂性的象征。它的应用跨越了多个学科，影响着科学和工程的理论和实践方面。pi的无限性质邀请我们不断探索和发现，使其成为数学家和爱好者的灵感来源。理解pi对于任何希望掌握数学及其在现实世界应用的更深层次概念的人来说都是必不可少的。在我们继续探索pi的奥秘时，我们也揭示了数学为人类提供的无尽可能性。