Pi is a letter in the Greek alphabet. Greek letters are used for many mathematical quantities, especially variables in formulas, such as theta for an angular measurement, and of course pi for the ratio of the diameter to the circumference of a circle. Pi notation was first used by the English mathematician William Jones in 1706. The pi notation was used by Euler as early as 1737. Thereafter, pi became the standard notation for this all-important ratio and transcendental constant.
It was the mathematician William Jones who first used pi as a mathematical symbol in 1706
Pi was first used by the Babylonians and Egyptians.
When was pi first being used approximated?
The first time the symbol Pi was first used for Pi was in ancient Greece in their numbers. The symbol "π" was number 80 in Greece.
Pythagoras was the 1st person who used the pi symbol first
William Jones first used the pi symbol (π) in 1706
Scientific notation is used to manage numbers >10, or < 1.0, so "51" = 5.1 x 101, 0.04 = 4 x 10-2, etc. Since pi is approx 3.14159, scientific notation is not needed, - you just write pi to the number of places accuracy you need.
gopal
Scientific notation is used to compute very large or very small numbers.
the ancient Egyptians used pi to build pyramids
Decimal notation:16634.7331Scientific notation: 1.66347331 x 10^4