山巅寺有师徒两人,师傅爱喝酒。一日,闲来无聊,师傅考徒弟的记忆力,说:“祖冲之推算出了圆周率,那么今天我把圆周率小数点后20位数写出来,你必须在一炷香之内背出来,否则不许吃晚饭。背出来了就赏你一壶酒喝。”一炷香后,徒弟一口气背出了小数点后22位数“3.141592653589793238 There are two teachers and apprentices in the temple, and the master loves to drink. One day, I was bored, and the memory of the master’s apprentice, said: “Zu Chong’s calculation of the pi, then today I write out the 20 digits after the decimal point, you must come back in one incense, or you must not eat dinner. When you come out, you will enjoy a pot of wine.“ After the incense, the apprentice took out the 22-digit number after the decimal point. ”3.141592653589793238