[DOC] [TLE] William Jones and his Circle: The Man who invented Pi | History Today [PAR] The history of the constant ratio of the circumference to the diameter of any circle 
... In 1706 a little-known mathematics teacher named William Jones first used a 
symbol ... In fact it was first used in print in its modern sense in 1706 a year before 
Euler's ... Beyond his first use of the symbol p Jones is of interest because of his... [DOC] [TLE] Pi - Wikipedia [PAR] The number  is a mathematical constant, the ratio of a circle's circumference to 
its diameter, ... The historically first exact formula for , based on infinite series, 
was not ... The symbol used by mathematicians to represent the ratio of a circle's 
...... circumference to its diameter was by Welsh mathematician William Jones in 
his... [DOC] [TLE] Pi Day: History of Pi | Exploratorium [PAR] 19001680 BC) indicates a value of 3.125 for pi, which is a closer ... He 
calculated the value of the ratio of the circumference of a circle to its diameter to 
be 355/113. ... Introduced by William Jones in 1706, use of the symbol was 
popularized by... [DOC] [TLE] The amazing history of pi - University of Arkansas at Little Rock [PAR] (Ancient history--More pi history--A novel way to compute pi--The symbol for ... 
That the ratio of the circumference to the diameter of a circle is constant (namely, 
... was introduced by the British mathematician William Jones in 1706, who wrote:
. [DOC] [TLE] circumference of a circle diameter of the circle - CST Personal Home ... [PAR]  is defined as the ratio of the circumference of a circle to its diameter, i.e. ... In 
1706, William Jones, a British mathematician, first used the symbol to represent. [DOC] [TLE] Pi Day 2015: meet the man who invented  | Science | The Guardian [PAR] Mar 14, 2015 ... Anglesey-born William Jones was the first person to use the Greek letter  for the 
ratio of a circle's circumference to its diameter. ... In 1706, William Jones  a self-
taught mathematician and one of Anglesey's most ... It is a work of great historical 
interest because it is where the symbol  appears for the first... [DOC] [TLE] Learn About Pi  Pi Day [PAR] Pi () is the ratio of a circle's circumference to its diameter. Pi is a ... The diameter 
of a circle is the distance from edge to edge, measuring straight through the 
center. ... The symbol (Greek letter ) was first used in 1706 by William Jones. [DOC] [TLE] Pi-Day project 1060-004 spring 2013 - Department of Mathematics ... [PAR] Throughout history, many mathematicians and architects have used pi to conduct 
... It wasn't until 1706 when a mathematician named William. Jones proposed the 
pi symbol ( rt), which happens to be the internationally known symbol for the 
value of pi. ..... P1 is, simply put, the ratio of the diameter to circumference of a 
circle. [DOC] [TLE] Math Forum: Ask Dr. Math FAQ: About Pi [PAR] By definition, pi is the ratio of the circumference of a circle to its diameter. ... 
modern symbol for pi [ ] was first used in our modern sense in 1706 by William 
Jones,... [DOC] [TLE] William Jones: The First Math Teacher to Use Pi | Mental Floss [PAR] Mar 12, 2013 ... Eighteenth-century mathematician William Jones had a problem with ... there was 
no term for the ratio of a circle's circumference to its diameter, despite ... , written 
in Roman letters as pi, is the Greek equivalent to our letter 'p'. ... began to use 
and widely disseminate the symbol  in correspondence with... [DOC] [TLE] Pi: Facts and Figures - Emergency Boot CD [PAR] is the ratio of a circle's circumference to its diameter ( = c / d) which also means 
that ... So, how did this Greek letter become the Mathematical symbol it's known 
for today? ... But William Jones is often cited as being the first author to use the 
Greek letter

Question: First used in 1706 by William Jones, it's the symbol for the ratio of the circumference of a circle to its diameter
Answer: Pi