2006-06-13 05:05:41 · 26 answers · asked by woodchuck 1 in Science & Mathematics ➔ Mathematics
π = 2 * cos^-1 (0)
π is a transcendental number:
-- Not only can you not express it with a finite number of fraction digits...
-- Not only can you not express it with an infinite tail-repeating sequence of fraction digits (or equivalently as a ratio of two integers)...
-- You can't even express it as the root of a polynomial, as you can with other well-known mathematical oddities such as i (the imaginary unit) and √2.
So the only way to get an "exact value of π" is by way of a mathematical expression.
2006-06-13 06:07:29 · answer #1 · answered by BalRog 5 · 3⤊ 0⤋
pi can't be a whole number or a common fraction so its not 22/7 22/7 is the golden ration and exceeds pi http://en.wikipedia.org/wiki/A_simple_proof_that_22/7_exceeds_pi or you can just push pi on your calculator (on the computer) and it gives you the value and then see the difference between 22/7 and the actual value for pi. you'll just have to trust pi on your calculator or take the circumference of a circle and divide it by 2r or its diameter (the same as 2r)
check ya later â¥
2006-06-13 05:48:08 · answer #2 · answered by ♥ The One You Love To Hate♥ 7 · 1⤊ 0⤋
By definition, pi is the ratio of the circumference of a circle to its diameter. Pi is always the same number, no matter which circle you use to compute it.
For the sake of usefulness people often need to approximate pi. For many purposes you can use 3.14159, which is really pretty good, but if you want a better approximation you can use a computer to get it. Here's pi to many more digits: 3.14159265358979323846.
and in fracion it is 22/7
2006-06-13 05:11:44 · answer #3 · answered by cooldude 1 · 0⤊ 1⤋
The exact value of pi is the circumference of any circle divided by its diameter
2006-06-13 05:23:38 · answer #4 · answered by Anonymous · 1⤊ 0⤋
4 - 4/3 + 4/5 - 4/7 + 4/9 - 4/11 etc. You'll need to go probably to 4/100 before you start getting close, but if you go all the way to infinity this is exactly pi.
2006-06-13 05:09:06 · answer #5 · answered by geofft 3 · 1⤊ 0⤋
The exact value is 3.141595627
Oh yes.
2006-06-13 05:09:22 · answer #6 · answered by thafe_star 2 · 0⤊ 1⤋
Actually, you cannot reach the exact value of pi, since it is not a rational number, but it is aproximatly 3.141592654.
2006-06-13 05:07:50 · answer #7 · answered by smartee 4 · 0⤊ 1⤋
that is like asking where does live originated from.
The exact value of PI has not been found
2006-06-13 16:37:41 · answer #8 · answered by anom n 1 · 0⤊ 1⤋
there are programs which can give pi value to millions of digits. I dont think you want that.
2006-06-13 05:31:55 · answer #9 · answered by Vivek 4 · 0⤊ 1⤋
22/7
2006-06-13 05:08:11 · answer #10 · answered by Toodles 2 · 0⤊ 2⤋