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Haraguchi holds the current unofficial world record for reciting 10,000 digits of pi in 16 hours, starting at 9:00 a.m. (16:28 GMT) on October 3, 2006. He equaled his previous record of 83,500 digits by nightfall and then continued until stopping with digit number 100,000 at 1:28 a.m. on October 4, 2006.
Computation of the binary digits (Chudnovsky algorithm): 103 days; Verification of the binary digits (Bellard's formula): 13 days; Conversion to base 10: 12 days; Verification of the conversion: 3 days; Verification of the binary digits used a network of 9 Desktop PCs during 34 hours. 131 days 2,699,999,990,000 = 2.7 × 10 12 − 10 4: 2 August ...
It was used in the world record calculations of 2.7 trillion digits of π in December 2009, [3] 10 trillion digits in October 2011, [4] [5] 22.4 trillion digits in November 2016, [6] 31.4 trillion digits in September 2018–January 2019, [7] 50 trillion digits on January 29, 2020, [8] 62.8 trillion digits on August 14, 2021, [9] 100 trillion ...
The digits of pi extend into infinity, and pi is itself an irrational number, meaning it can’t be truly represented by an integer fraction (the one we often learn in school, 22/7, is not very ...
The number π (/ p aɪ / ⓘ; spelled out as "pi") is a mathematical constant, approximately equal to 3.14159, that is the ratio of a circle's circumference to its diameter.It appears in many formulae across mathematics and physics, and some of these formulae are commonly used for defining π, to avoid relying on the definition of the length of a curve.
BBP and BBP-inspired algorithms have been used in projects such as PiHex [5] for calculating many digits of π using distributed computing. The existence of this formula came as a surprise. It had been widely believed that computing the nth digit of π is just as hard as computing the first n digits. [1] Since its discovery, formulas of the ...
Super PI by Kanada Laboratory [102] in the University of Tokyo is the program for Microsoft Windows for runs from 16,000 to 33,550,000 digits. It can compute one million digits in 40 minutes, two million digits in 90 minutes and four million digits in 220 minutes on a Pentium 90 MHz.
One hundred million digits of the circular constant (円周率一億桁表, 2016, ISBN 978-4-87310-314-3) One hundred million digits of the circular constant small edition (円周率100,000,000桁表, 2019, ISBN 978-4-87310-628-1) (It is printed with micro characters similar to the banknote anti-counterfeiting technology.)