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The earliest known textually evidenced approximations of pi date from around 1900 BCE; they are 25/8 (Babylonia) and 256/81 (Egypt), both within 1% of the true value.
The Greek letter pi was first used to represent the ratio of the circumference of a circle to its diameter in 1709 by mathematician William Jones.



The digits appear to be randomly distributed; however, to date, no proof of this has been discovered. Also, π is a transcendental number – a number that is not ...

A brief history of pi | PCWorld


Mar 13, 2013 ... In honor of Pi Day, we bring you a brief history of everyone's favorite ... and its diameter, and it was always there, just waiting to be discovered.

William Jones and his Circle: The Man who invented Pi | History Today


William Jones and his Circle: The Man who invented Pi ... The discovery that there are two types of irrational numbers, however, does not detract from Jones's  ...

Where Does 'PI' Come From?


You know what 'PI' is ... it's a number with the value 3.14, and it's used to find the ... Mathematicians who discovered this, thousands of years ago, were amazed!

The History of Pi


The earliest value of pi used in China was 3. In 263 AD, L iu Hui independently discovered the method used by Bryson and Antiphon, and calculated the ...

Historical Overview of Pi


The ancient Babylonians knew of the existence of pi ... During the fith century B.C., Hippias of Elis discovered the quadratrix, a curve which could be used to ...

Who discovered pi? - Quora


Mar 10, 2013 ... Euclidean geometry, attributed by Greek mathematician Euclid (born 325 BC) was the first recorded system used to show Pi as a mathematical ...

What is pi, and how did it originate? - Scientific American


May 17, 1999 ... Regardless of the circle's size, this ratio will always equal pi. .... in Early Drug Discovery AEGIS (Accelerated Early staGe drug dIScovery).

Pi Day: History of Pi | Exploratorium


Pi has been known for almost 4000 years—but even if we calculated the number of seconds in those 4000 years and calculated pi to that number of places, we ...

Popular Q&A
Q: Who discovered pi and how?
A: Being a number, pi (p=3.14. isn't really an invention. If anything, it's a Read More »
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A: The modern symbol for pi was first by William Jones, an English mathematician. Ancient Greeks and Read More »
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Q: Who discovered Pi, and how?
A: Nobody knows how pi was discovered. We do know that pi has been known for over 4000 years! Text again! report this answer. Updated on Wednesday, February 01 201... Read More »
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Q: Who discovered pi?
A: The value of π has been known in some form since antiquity. As early as the 19th century BC, Babylonian mathematicians were using π = 25⁄8, which is within 0.5%... Read More »
Source: askville.amazon.com
Q: Who discover pi and when.
A: Well, Archimedes, but . Historians believe that most of the ancient civilizations, such as the Egyptians, Indians and Greeks had figured out Pi, but Archimedes ... Read More »
Source: askville.amazon.com