2007-06-15 20:45:21 · 9 answers · asked by alissandra v 1 in Science & Mathematics ➔ Mathematics
The Pi button is a stored preset, and should be accurate to the last displayed digit.
22/7 is a division problem, and should be rounded.
2007-06-15 20:49:00 · answer #1 · answered by Caelorum 3 · 0⤊ 2⤋
The reason for not getting the exact Pi when one divides 22/7 is that this fraction is only an estimation of what Pi actually is. Pi is a number which represents the ration of a circles diameter to its circumference. The actual number for Pi, is a decimal which runs on forever without repeating itself. So, no simple fraction like 22/7 is going to be the same as a calculators number entered by the programmers.
2007-06-15 20:51:45 · answer #2 · answered by MasterMmmm 5 · 0⤊ 0⤋
pi is not 22/7. It has an irrational value of 3.1415926...
For school calculations etc, using the value upto such accuracy is pointless. So, an approximate value is taken.
Some ppl keep the approximate value as 22/7 (which comes to 3.142857...) and some ppl just keep it as 3.14
These values shud suffice for school level calculations involving pi. Scientific researchers using such approximate value of pi will give a lot of trouble. These ppl are the ones who use the actual value of pi (which u get when u press pi in calculator).
2007-06-15 20:56:28 · answer #3 · answered by ? 3 · 0⤊ 1⤋
22/7 is just an approximation for pi. Pi is actually a never ending never repeating decimal. It has been calculated to hundreds of thousand s of decimal places. For most purposes 3.14159 is sufficient.
2007-06-15 20:49:46 · answer #4 · answered by cscokid77 3 · 0⤊ 0⤋
pi is an somewhat complicated huge type and it can not be written in any fractional type. 22/7 is unquestionably an estimate to the relatively fee of pi, so it does not provide any precise fee of pi. Thats why a similar sequence does not arise.
2016-12-08 10:41:22 · answer #5 · answered by ? 4 · 0⤊ 0⤋
Because 22/7 is NOT equal to pi. It is only an APPROXIMATION of pi up to a couple of decimal places.
There is no fraction that represents the true value of pi, because pi is an irrational number.
2007-06-15 20:55:33 · answer #6 · answered by Anonymous · 1⤊ 1⤋
22/7 is an approximation. There is no simple fraction that perfectly represents Pi.
2007-06-15 20:49:29 · answer #7 · answered by Gary 6 · 1⤊ 0⤋
355 / 113 is a much better approximation FWIW
| pi - 22/7| < (1/7)^2
but
|pi - 355/113| < (1/113)^3
2007-06-15 21:09:50 · answer #8 · answered by atheistforthebirthofjesus 6 · 0⤊ 0⤋
As the others have mentioned, π≠22/7. In fact, Wikipedia has an article devoted exclusively to proving this very fact. See http://en.wikipedia.org/wiki/Proof_that_22/7_exceeds_%CF%80 .
2007-06-15 21:16:58 · answer #9 · answered by Pascal 7 · 0⤊ 1⤋