#### Sentence Examples

• In 2009, pi was calculated to more than two trillion digits—in less than thirty hours.
• We consider a system of points Pi, P1..
• 1 It has also been pointed out that the employment of the sign PI for wa and the use of z for s, cited in support of the earlier date, survived in the Kassite period.
• (From Gegenbaur, pi, Pallial nerve.
• Mines are also worked at Kwanyin-shan, opposite the Russian frontier town of Radevska, and at Chia-pi-kou, on an affluent of the upper Sungari.