Pi Day is celebrated on March 14th (3/14) around the world. Pi (Greek letter “ π ”) is the symbol used in mathematics to represent a constant — the ratio of the circumference of a circle to its diameter — which is approximately 3.14159. Pi Day is an annual opportunity for math enthusiasts to recite the infinite digits of Pi, talk to ...

Pi Day is an annual celebration of the mathematical constant π (pi). Pi Day is observed on March 14 (the 3rd month) since 3, 1, and 4 are the first three significant figures of π, and was first celebrated in the United States. [2][3] It was founded in 1988 by Larry Shaw, an employee of a science museum in San Francisco, the Exploratorium.

3 月 14 日是 圆周率日(Pi Day)，人们会在这一天举行吃派比赛、披萨舞会，玩 数学梗(math puns)。 如果这个数学领域中的重要常数不足以让 3 月 14 日成为一个节日的话，再加上爱因斯坦的生日、Linux 内核 1.0.0 发布的周年纪念日，莱伊· 惠特尼 在这一天申请了轧花机 ...

圆周率日（Pi day）是庆祝圆周率π的日子。 正式日期是3月14日，由圆周率最常用的近似值3.14而来。 圆周率日是一年一度的庆祝数学常数π的节日，时间被定在3月14日。

WEST PALM BEACH, Fla. (AP) — Math enthusiasts around the world, from college students to rocket scientists, celebrate Pi Day, which is March 14 or 3/14 — the first three digits of an infinite number with many practical uses. Many people will mark the day with a slice of pie — sweet, savory or even pizza.

Every March 14, mathematicians, scientists and math lovers around the world celebrate Pi Day, a commemoration of the mathematical sign pi. The date written numerically as 3/14 match the first three digits of the never-ending number: 3.14.

2025年3月14日 · What is Pi Day, and why do we celebrate it every March 14? Here's what to know as math lovers around the world mark Pi Day.

Celebrate Pi Day wherever you are. From the pie feast to the pi procession, from π activities to pi gear, the Exploratorium demystifies some of our long-standing Pi Day rituals and offers insight into a few fun ways for anyone to celebrate this infinite decimal.

March 14 is a day of double celebration for math enthusiasts and science lovers alike. Not only is it Pi Day, honoring the mathematical constant π (3.14), but it also marks the birthday of one of history’s greatest minds, Albert Einstein.. What is Pi Day? Pi Day, celebrated annually on March 14 (3/14), pays tribute to the mathematical constant π, which represents the ratio of a circle’s ...

2020年3月14日 · 圆周率日（Pi day）是庆祝圆周率π的特别日子。 正式日期是3月14日，由圆周率最常用的近似值3.14而来。 已知最早的大型以π为主题的庆祝活动是Larry Shaw 组织，1988年3月14日在旧金山科学博物馆举办的。