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What is Pi number?

Pi is a very interesting number that is of great importance to any mathematical process. In many calculations of mathematics, for example; We come across the number of pi, such as circles, Springs, Pendulum...

 

Generally, the simplest number of pi is widely used, although it does not mean much. This number is actually a ratio and is obtained from the diameter of the circle's perimeter. This rate is known as 3.14. You can measure it yourself, like find any circular objects at home, but make sure it's as big as possible. Let's just say you have a glass, if you measure the circumference of the glass first and then divide the diameter, you always get the result of 3.14. Of course, it is necessary to make a really precise measurement for the fact that the result is close.

 

The proof of pi corresponds to a 4-inch distance when a circle with a 1.27-inch diameter is opened linearly. 4 inches (perimeter)/1.27 (diameter) = 3.14 as agreed.

 

As seen, the PI number is essentially a very simple basis and is a constant rate that cannot be changed. But since Pi is also an irrational number, it can never be expressed in a finite integer scheme, and contains an infinite number of repeated numbers after a comma. Since the Babylonians, they are known to be aware of the existence of Pi in the Middle East and Mediterranean civilizations. Different ancient civilizations have used different numbers for pi number. For example, due to 2000 BC, the Babylonians were using π= 3 1/8 and the ancient Egyptians were π= 256/81, i.e. about 3,1605. Nevertheless, it is not understood that πis an irrational number for a very long time. In 1761, the evidence published by Johann Heinrich Lambert proved to be an irrational number of constants. In daily use, there is an endless number of digits that do not repeat periodically to express the true value, although it is simply expressed as 3.1416. The decimal stands up to the first 65 digits are as follows:

 

3, 14159 26535 89793 23846 26433 83279 50288 41971 69399 37510 58209 74944 5923


 

Today, several competitions are held to calculate the maximum number of pi after the comma. The record is now known to be 73 billion digits after the comma.

 

History

The number of Pi was known by the Babylonia, the ancient Egyptians and many ancient civilizations. They realised that the perimeter of all circles was equal to a fixed number of its parts. The presence of this fixed number now allows the calculation of the perimeter of every known circle. Around 2000 BC, the Babylonians were using p number 31/8 or 3.125. In ancient Greece, the square root was used in 10 or 3.162 numbers. Arhimedes (B.C. 287 – 212) used the number of 3 10/71 and 3 1/7 as P number.

 

In 500 A.D., he used 3.1415929 for P number. In 1424, the sixteen digits after the comma were correctly known in Iran. In 1596, German Ludolph van Ceulen calculated the twenty digits after P's comma, and this number was known as the Ludolph constant in Europe. After that date, the number of P's was calculated by the billions of digits after the comma.

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