## Accuracy of 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 10^{26} meters in diameter) and be accurate to the diameter of a proton (10^{-15} meters) you’d only need 43 digits of pi.

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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

Dr. Mark Reed said this on May 22, 2007 at 11:33 pm |

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

kayla shelbie said this on March 8, 2008 at 9:50 am |

u r use less den!!!!!!!!

tanya singh said this on April 20, 2010 at 6:57 am |

i like Pi.

Bill Tucker said this on March 13, 2008 at 5:39 pm |

[…] 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 […]

Postcards from Introspectionland » Blog Archive » Computational Complexity: So You Think You Settled P verus NP said this on January 15, 2009 at 8:36 am |

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?

John said this on February 18, 2009 at 9:59 pm |

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

tanya singh said this on April 20, 2010 at 6:56 am |

i hate pie hate pi day projects

rosa said this on March 11, 2012 at 2:49 pm |

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

Marry said this on March 22, 2012 at 11:49 am |