How do you recite pi ? Thank you ...?

Question

Hello everyone.

How do you extract the constant pi accurately (using numerical) method ?

My father used to tell me that you could get pi from 22/7 ?

Please don't tell me to draw a circle ... :D

Best regards,
-septerra-

Answer 1

First, 22/7 is a fair approximation, but 355/113 is much better. But pi is not equal to any fraction involving whole numbers (sorry).



There are many ways to approximate it more accurately. One is



pi=4-4/3+4/5-4/7+4/9-4/11.......



Take as many terms as you wish. Unfortunately, this gets close to pi very slowly. There are other, much faster methods.

Answer 2

draw verticle 1 foot lines on the floor of your house. Then construct a 6 inch needle. Randomly throw this needle at the floor 1000 times and count the number of times the needle hits a line. Now take 1000 / (# of hits) and you have a rough estimate of pi. (Warning: this method is extremely inefficient and time consuming, I suggest going to the website http://www.angelfire.com/wa/hurben/buff.html and trying it with a computer.

Answer 3

22/7 is ok for many calculations but not extremely accurate.



See the web link below for some series that converge to pi.

Answer 4

Pi (spoken as pai - i as I)

It is irrational number That means it can not be expressed in form of a/b.

Its approx value is 22/7

More accurate value is 355/113 (remember as 113355 put last 3 on top)

Value in decimal form is 3.1415926....

It is non terminating and non repeating decimal.

Answer 5

The only way is learn it. There are plenty web sites list it to many decimal places.



22/7 is an approximation so don't use it to work it out.

Answer 6

Please visit http://en.wikipedia.org/wiki/Pi . It contains many equations how to get the numerical approximation of Pi, and there are helpful explanations. Hope that helps.

Answer 7

Well, first you need some pie crust. Then, you must choose the fillings of your likeing. It doesnt take much math to make pie. I like banana cream pie. It tastes good.



~e=mc^2

Answer 8

3.1415926535897932384626433832795

100% sure that is pi cause i just busted out my scientific calculater!!!!!!!!