Pi was first used as a mathematical symbol by the mathematician William Jones in 1706.
It was the Welsh mathematician William Jones in 1706 and pi is the 16th letter of the Greek alphabet
Pi as a mathematical symbol was introduced by William Jones in 1706
Pi is the 16th letter of the Greek alphabet, representing 'p'. It's mathematical use was proposed by Welsh mathematician William Jones in 1706, representing the constant 3.14159.
Pi was known before 1706 but William Jones used the Greek letter for pi in 1706. Euler popularized the use.
According to Wikipedia it was William Jones in A New Introduction to Mathematics.
It was a Greek letter,and was first used in math in 1706 by William Jones.
It was William Jones in 1706 and pi is the 16th letter of the Greek alphabet
It was first introduced by the Welsh mathematician William Jones in 1706 and pi is the 16th letter of the Greek alphabet also it is the 1st letter of the Greek word for perimeter.
"Pi" is the ratio between the circumference and the diameter of a circle. The Greek letter π (pi) was first adopted for the number as an abbreviation of the Greek word for perimeter (περίμετρος), or as an abbreviation for "periphery/diameter", by William Jones in 1706.
The author of the text "Synopsis Palmariorum Matheseos" is William Jones, who first introduced the symbol π to represent the mathematical constant pi in the publication in 1706.
It was popularised by the mathematician William Jones in 1706 and pi is the 16th letter of the Greek alphabet and it was chosen because the first letter of the Greek word for perimeter begins with pi.