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Pi Day is on March 14. This is the day when mathematicians and geometry enthusiasts around the world get together and celebrate the mathematical constant of Pi. There are two good reasons to hold Pi Day on March 14. The first is that in the American date format, it is 3/14 and Pi, to two decimal places, is 3.14. The other reason is that March 14 is Albert Einstein’s birthday, and he knew a thing or two about numbers. Pi Day started in 1988 at the San Francisco Exploratorium. The museum staff walked around the circular spaces in the building eating fruit pies. Cherry and apple pies have very little to do with Pi, unless you want to calculate the circumference of your fruity treat.
圓周率日會在每年的3月14日慶祝。這一天，全球的數學家和幾何學愛好者會聚集在一起，慶祝數學常數“pi”。在這一天來慶祝該節日有兩個原因。第一，在美國日期格式中，3月14日，pi小數點后兩位正好是3.14。第二，3月14日也是愛因斯坦的誕辰，他對數字有著深入的了解。1988年，在舊金山科學博物館舉辦了第一屆圓周率日。博物館工作人員在館內作圓周運動，邊做邊吃水果派。櫻桃派和蘋果派與圓周率無關，除非你想算一算你水果大餐的周長。
Pi is a letter of the Greek alphabet. The symbol was first used in mathematical calculations in 1737 by the Swiss mathematician Leonhard Euler. It is used for the ratio of the circumference of a circle to its diameter. Computers have calculated Pi to over one trillion digits. It has countless numbers of digits. Perhaps more impressive is the feat of British autism sufferer Daniel Tammet. He holds the European record for reciting Pi from memory to 22,514 digits in just over five hours. He also suffers from a condition in which he sees numbers as colours. He says Pi is particularly beautiful. The worlds of science, engineering and mathematics would be lost without it. Celebrate today with your favourite pie!
pi是希臘字母。1737年，瑞士數學家萊昂哈德·歐拉首次將它運用于數學運算。pi代表著圓周到直徑的比例。計算機算出pi圓周率小數點后有1萬多億。pi的數值是無窮無盡的。或許，最讓人印象深刻的就是英國自閉癥天才丹尼爾·塔梅。他能夠在短短5個小時之內記憶小數點后2萬2514個數字，而這也保持著歐洲記錄。他把數字看成是顏色。他認為圓周率特別美麗。如果沒有它，科學界、建筑界以及數學界將不復存在。吃著你喜歡的“派”來慶祝吧。
譯文屬可可英語原創，未經允許，不得轉載。
