CNNさんのインスタグラム写真 - (CNNInstagram)「Just in time for #PiDay, Google employee Emma Haruka Iwao just broke the record for calculating pi. Iwao, who calculated the mind-bogglingly long number to 31.4 trillion digits, beat the record set in 2016, which was 22.4 trillion digits long. Her achievement was certified by Guinness World Records on Wednesday, making her the third woman to set a world record for calculating the number. Just in case you don't know, Pi is an irrational number that continues indefinitely without repetition, and is calculated by dividing a circle’s circumference by its diameter 🥧」3月14日 23時47分