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The Chudnovsky algorithm is a fast method for calculating the digits of π, based on Ramanujan's π formulae.Published by the Chudnovsky brothers in 1988, [1] it was used to calculate π to a billion decimal places.
3.14159 26535 89793 23846 is π rounded to 20 decimal places 2.71828 18284 59045 23536 is e rounded to 20 decimal places. In some programming languages, it is possible to group the digits in the program's source code to make it easier to read; see Integer literal: Digit separators.
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The idea of using a period to separate the integer part of a decimal number from the fractional part was first proposed by Napier himself in his Constructio book, Section 5, “In numbers distinguished thus by a period in their midst, whatever is written after the period is a fraction, the denominator of which is unity with as many cyphers ...
The Russian ruble was the first decimal currency to be used in Europe, dating to 1704, though China had been using a decimal system for at least 2000 years. [2] Elsewhere, the Coinage Act of 1792 introduced decimal currency to the United States, the first English-speaking country to adopt a decimalised currency.
The reforms of 1855 introduced a new coinage, consisting of bronze 1 ⁄ 2, 1, 2 and 5 öre, silver 10, 25 and 50 öre, 1 and 2 riksdaler riksmynt and 1 riksdaler specie. The silver coins retained the .750 fineness of the preceding issues, causing the 10 öre coin to weigh just 0.85 grams.
The 5 Big Lies About American Business The 10 Big Lies About America: Combating Destructive Distortions About Our Nation [ 1 ] is a 2008 book by radio talk show host Michael Medved . The book reached #30 on the New York Times Best Seller List .