March 14th Pi Day Challenge

General Discussion
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:thinking: :grin: :+1: I like 3.14 better although i live in a 22/7 country.

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No that means you can make him a very special Pi extension :joy:

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13

You can make him a 22/7 themed pi cake on his birthday :wink:

Ah an interesting case :joy:

As a student I switch my choice depending on the situation. 3.14 for 10 and its multiples and 22/7 for 7 and its multiples. Saves you a lot of time during exams.

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14

My nick name was a PI when I was in school, because I love mathematics.

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15

Then Pi Day is your own special day :grin::+1::joy:

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16

@Peter you are right, although each year my friends message me to wish PI day.

BTW here it is a code how App Inventor defines PI in runtime.scm file...

(define *pi* 3.14159265)

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17

The Colliding Balls method would be a natural for a Canvas:

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18

pi never equals 22/7. As 22/7 is a rational number but pi is irrational(non-terminating value). Since, 22/7 is easy to use, our school books and teachers uses this value.

pi is actually division of Circumference of Circle (2πr) by diameter (2r).

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here is a solution, which uses the pi.delivery API

Unbenannt
Unbenannt840×456 63.4 KB

Taifun

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355/113 =3. 1415929502539
blocks(1)

公元480年左右，南北朝时期的数学家祖冲之进一步得出精确到小数点后7位的结果，给出不足近似值3.1415926和过剩近似值3.1415927，还得到两个近似分数值，密率355/113和约率22/7。密率是个很好的分数近似值，要取到52163/16604才能得出比355/113略准确的近似。

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blocks
blocks716×124 12.4 KB

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22

Apparently, 39 decimal places is enough for most calculations in the universe, something to do with the width of a hydrogen atom.

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23

They almost changed Pi to 3.2

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24

3.2 is approximate value of pi which Babylonian and Egyptian used around 4000 years ago :sweat_smile:

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26

Is there also a pie.delivery API? :crazy_face:

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27

Personally, I prefer Archimedes' method, using exhaustion. Here's a link to it because I'm too exasperated to type out the whole thing by hand :/

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28

Vedas are claimed to provide clues to deep scientific concepts hidden within them.
In Rig Veda(oldest known Vedic Sanskrit Text), the value of pi upto 32 decimals is written in form of sloka.

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29

this depends on your location... :partying_face: https://www.google.com/search?q=pie+delivery
this process also works asynchronously... you send a pie request and probably some time later a guy will knock on your door with your pie... enjoy...
Taifun

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image

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