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.
Pi as a symbol was first used by the English mathematician William Jones. In 1706 he wrote that 3.14159=Euler, in 1737, used this symbol and it became the worlds standard symbol for pi after that.
The value of pie calculated by first Indian scientist Baudhayana
It was suggested that the Greek symbol for the letter "P" (Pi) be attached to this mysterious number by William Jones, a Welsh mathematician in the early 18th century. There is no logical explanation as to why this symbol was chosen.
Pie crusts were originally used only with meat dishes
Pie is a symbol that represents a number (3.14159...). Pie algebra is when the number Pie is used in algebra like the ccircumference of a circle. A circumference of a circle is worked out by Pie algebra: DxPie (diameter x Pie). Its a bit complicated to explain but...
Johann Heinrich Lambert is credited with the first proof that pi is irrational in 1768.
Ramanujan
~ Pi
the symbol gfor pie is n
derderder
a pie
to eat pie