Accuracy of Pi

Pink Pi

Pi is indeed a fascinating number. Memorizing pi is a feat (43,000 digits by Krishan Chahal—took him 5 hours 21 minutes), but you’ve probably heard of that already. What I find more interesting is how few digits of pi you actually need to get anything done.

If you wanted to draw a circle around the known universe (about 1026 meters in diameter) and be accurate to the diameter of a proton (10-15 meters) you’d only need 43 digits of pi.

Advertisements

~ by hobzcalvin on April 25, 2007.

9 Responses to “Accuracy of Pi”

  1. I am shocked when i come to know about the speed of reciting of Krishan Chahal of India. he recited it only in 5 hours 21 minutes, on the other hand other record breaker are taking almost double time to him. Its really amazing i am a prof. of Mathemetics in Holms Uviversity and i have memorized pi up to 12,000 digits then i come to know that it is almost immposible after it. pi is not required in any calculation up to this depth but it is considered as the standard in memorising as well as to lable the Algorithum processor of computers. But people like Chahal have more utility with this infinite number. Thanks

    if any body wants to know about pi more please feel free to contact me
    Dr. Mark Reed
    USA

  2. i hate pi!!!!! i have to do i project for pi day whoot whoot!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

  3. i like Pi.

  4. […] the way, did you know that if you wanted to draw a circle around the known universe (about 1026 meters in diameter) and be accurate to the diameter of a proton (10-15 meters), you’d only […]

  5. Interesting, but where is the proof:
    1) that PI is irrational and infinite?
    2) that the mathematical equations used to calculate PI to such a degree are correct?
    3) What is the most accurate MEASURED value for PI?
    4) How was the most accurate MEASURED value for PI determined?

  6. pi is sum thing interestin to noe ……….so d people who hates pi is dum actually they dont want to do it ………oh i m sorry actually u dont noe how to use a pi ………. n d pi luverz i luv u guyzz

  7. i hate pie hate pi day projects :/

  8. I like pi but I don’t like do pi day projcet….

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

 
%d bloggers like this: