do i go 276/22? etc?
2007-02-27 20:58:25 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Yep. It just keeps on going and going:
The numerical value of π truncated to 50 decimal places is:
3.14159 26535 89793 23846 26433 83279 50288 41971 69399 37510
2007-02-27 21:09:13 · answer #1 · answered by JOHN B 6 · 1⤊ 1⤋
22/7 is a rational approximation of Ï, not a calculation formula.
Below are 12 successively more accurate approximations to Ï
3/1, 4.5070341%
13/4, -3.4507130%
16/5, -1.8591636%
19/6, -0.7981306%
22/7, -0.0402499%
201/64, 0.0308014%
223/71, 0.0237963%
245/78, 0.0180486%
267/85,0.0132475%
289/92,0.0091771%
311/99,0.0056822%
333/106, 0.0026490%
355/113, -0.0000085%
Wikipedia has an excellent article on calculating Ï.
2007-02-28 06:03:10 · answer #2 · answered by Helmut 7 · 2⤊ 0⤋
It is important to realise that pi is NOT equal to 22/7. That is only an approximation used to get answers to simple problems particularly if the radius is a multiple of 7. Unfortunately too many teachers of younger students tell them that pi is 22/7 maybe to simplify matters, but possibly because they know no better themselves.
2007-02-28 05:29:43 · answer #3 · answered by mathsmanretired 7 · 2⤊ 0⤋
22/7 = 3.142857...., and is accurate only to 3 decimal places. The next rational convergent is 355/113 = 3.1415929.....
2007-02-28 05:09:06 · answer #4 · answered by Anonymous · 2⤊ 0⤋