一块圆周率(A piece of pi)

他们说生活中唯一的常数是变化。然而，在数学中，有很多常数，今天我们庆祝可能是最著名的常数：π。这个奇怪的常数是一个圆的圆周与其直径之间的商，约为314159。每年3月14日，世界各地的数学爱好者都会开始烘焙以纪念圆周率日，这是一个庆祝数学常数π及其美味的同音词蛋糕的节日。它始于1988年，当时物理学家拉里·肖将日期（14/3）与该常数的前三位数字联系起来。今天，数学家和业余爱好者通过吃蛋糕和背诵圆周率来庆祝圆周率日。
原文：
They say the only constant in life is change. However, in mathematics, there are many constants, and today we celebrate perhaps the most famous constant: π. This strange constant is the quotient between the circumference of a circle and its diameter, approximately 314159. On March 14th every year, math enthusiasts around the world start baking to commemorate Pi Day, a festival celebrating the mathematical constant π and its delicious homophonic cake. It began in 1988 when physicist Larry Shaw associated the date (14/3) with the first three digits of the constant. Today, mathematicians and amateur enthusiasts celebrate Pi Day by eating cakes and reciting Pi.
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