Get $\pi$ decimals by hand

I recognize that there was an individual that can get 100 decimal figures of $\pi$ prior to computer systems had the ability to get thousands.

Just how did the individual do that?

0
2019-12-02 02:50:08
Source Share
Answers: 3

According to Wikipedia, John Machin incorporated the formula $$\frac{\pi}{4}=4\cot^{-1}5-\cot^{-1}239$$ with the Taylor collection development for the inverted tangent in order to calculate $\pi$ to 100 decimal areas.

A previous document resulted from Abraham Sharp that made use of an arcsine collection to locate 72 decimal figures.

0
2019-12-03 04:25:55
Source

This web page on the chronology of pi has several valuable notes on just how the pre - computer system period estimations of $\pi$ were executed.

0
2019-12-03 04:25:52
Source

See additionally Pi: A Source Book.

0
2019-12-03 04:24:54
Source