The origin of π is the lowercase of the sixteenth Greek letter. This symbol is also the first letter of Greek π ε ρ ρ ρ α (meaning periphery, region, circumference, etc. ). 1706, the British mathematician William Jones (1675- 1749) first expressed pi. 1736, the great Swiss mathematician Euler also began to use it.

Extended data:

The position of π in the world.

Science has made mankind progress, and the pursuit of science has never stopped. The pursuit of science has also been advancing. With the development of computer, it seems that science has gone further, especially in the field of mathematics. As one of the most important elements in higher mathematics, π not only plays a very important role in the field of mathematics, but also plays an important role in all aspects of physics.