Value of pi?

Question

Don't answer 3.14 or 22/7. I want the exact value.

Answer 1

It is irrational, so it cannot be represented with finite number of decimal digits or as a fraction of two integers.

Here is an interesting way to calculate, used by Leibniz to calculate pi
pi=4 x [ 1 - 1/3 + 1/5 - 1/7 + 1/9 - 1/11 + 1/13 ....... ] .

Many more formulas can be found here
http://mathworld.wolfram.com/PiFormulas.html

Answer 2

Pi is an irrational number, and can not be calculated exactly. That is, there are no two numbers which when stated as an improper fraction will give the exact value. If you want a much better estimate than those given so far -- and one that is nearly as accurate as an 8-digit calculator will give -- try 355/113. This is accurate to the 6th decimal place.

Answer 3

The calculator value of Pi is 3.141592654 (10 significant figures)
The value 22/7 is just another estimate.

Pi is the ratio of the circumference of a circle to its diameter;
Pi is derived because whenever the circumfrence of any circle is divided with its diameter, the ratio is always 3.14......
(Pi is also the Area of a circle/ radius^2, but it is impossible or extremely difficult to determine the are of a circle without using Pi.)

There is no exact value to Pi
The digits in the decimals in the value of Pi (3.14... blah blah) are totally random. there is no known pattern to their arrangment.
Heres another 63 digits of PI:
3.141592653589793238462643383279502884197169399375105820974944592
There is no pattern to the digits in PI.
We derive PI more acurately with morden computers and instruments which make smoother, more perfect circles.

(A circle having an infinite number of sides could have something to do with the randomness of the digits found in PI...)

Answer 4

The value of pi has been proven to be and irrational number. That means that there are no two integers A and B such that
pi = A/B.

This further means that there are no two integers (or rational numbers) O (circumference) and d (diameter) such that O/d is a number that satisfies your query.

Answer 5

Sorry, you'll never get the exact value. Pi is irrational, so it's decimal representation is infinite and non -periodic

Answer 6

The exact value of pi is impossible to state, it's an infinitely long progression of digits without repetition. So forget about an exact value.

Here is π specified to one MILLION decimal places:
http://3.141592653589793238462643383279502884197169399375105820974944592.com/

Answer 7

Diameter*pi=Circumference
So to get pi all you do is take Circumference/diameter to get the value of pi.

Answer 8

there is no exact value Pi will go on forever and has no pattern in it either.

so good luck finding it cause you won't

Answer 9

3.1428571428571428571428571428571
is the calculator value of pi

Answer 10

pi=circumference/(2r)
pi=Area/r^2

This is if you are using a circle.