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Pi calculated to more than a trillion places

Discussion in 'BBS Hangout' started by rockHEAD, Dec 6, 2002.

  1. rockHEAD

    rockHEAD Member

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    Pi calculated to more than a trillion places
    Associated Press
    TOKYO -- A team of researchers at a leading national university have set a world record by calculating the value of pi to 1.24 trillion places, one of the researchers said Friday.

    Professor Yasumasa Kanada and nine other researchers at the Information Technology Center at Tokyo University calculated the value for pi with a Hitachi supercomputer over 400 hours in September, project team member Makoto Kudo said.

    The new calculation is more than six times the number of places in the record currently recognized by Guinness World Records -- 206.158 billion places -- which Kanada also helped calculate in 1999.

    Kanada's team spent five years designing the program used in the September experiment, Kudo said.

    The Hitachi supercomputer is capable of 2 trillion calculations per second, or twice as fast as the one used for the current Guinness record calculation.

    Pi, usually given as 3.14, is the ratio of the circumference to the diameter of a circle and has an infinite number of decimal places.

    Such an extremely precise calculation of the figure isn't necessary for any practical scientific use, but researchers say it contributes to improving scientific calculation methods.

    ----------------------------------

    math geeks will love this!
     
  2. drapg

    drapg Member

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    In middle school, my "Number Sense" teacher had a poster of Pi out to 100 digits.

    I memorized the whole sequence by the end of the year.

    I still belt it out up to 23 places, nearly 15 years later.
     
  3. rimrocker

    rimrocker Member

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    drapg,

    I don't know whether to hold you in awe or pity.
     
  4. drapg

    drapg Member

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    Just take it as a sign about how MUNDANE that class was!

    Especially considering I spent the rest of my time (while not staring at the poster), programming games on my graphing calculator...

    ok, i was a nerd. you can pity me.
     
  5. RunninRaven

    RunninRaven Member
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    I guess Carl Sagan was wrong about pi. I figured there would be a message from aliens in there somewhere. ;)
     
  6. Falcons Talon

    Falcons Talon Member

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    I thought that this is what Manny did with his newfound free time.:D
     
  7. Rocketman95

    Rocketman95 Hangout Boy

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    Fascinating, utterly fascinating.

    Now how am I supposed to work now, I'm too giddy.
     
  8. 3fingeredgus

    3fingeredgus Member

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    That's cool and all, but I wonder how much grant money went into this 5 year project which isn't practical for any scientific use? Not trying to minimize the coolness of this or anything, but it does seem kind of pointless other than Kanada telling his grandkids that he could cut pie into smaller pieces than anyone else in the history of man..
     
  9. B-Bob

    B-Bob "94-year-old self-described dreamer"
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    I would bet very little grant money went into this. Mathematics gets the least funding of all math and science research. Just for what it's worth.

    RM95, you are cracking me up. Hope you have calmed yourself enough to stay in your chair.
     
  10. AMS_blackwidow

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    Pi is useless............ ive never used it.. xept in geometry and trig. and ive never used those two clases
     
  11. MadMax

    MadMax Member

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    "i was told there would be no math." -- chevy chase as gerald ford on SNL.
     
  12. Bailey

    Bailey Veteran Member

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    Are we talking about the same Pi? The one that is one of the most significant natural ratios in mathematics?



    Sorry, but i was a Maths and Economics major. :D
     
  13. PhiSlammaJamma

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    I'll use this moment to illustrate how you can have different magnitudes of infinity. Pretty cool stuff if you ask me.

    There are an infinite amount of numbers between 3 and 4 as illustrated by Pi. Call that Infinity3 just for the hell of it. There are an infinite amount of numbers between 4 and 5 just the same. Call that infinity4. It's very clear that Infinity4 has a higher magnitude than Infinity3 (the number 4 is larger than the number 3) . So it becomes pretty obvious that you can have different magnitudes of infinity. You can credit that to a man called Descarte.

    Someone else figured out that you can different values for nothing.
     
    #13 PhiSlammaJamma, Dec 6, 2002
    Last edited: Dec 6, 2002
  14. drapg

    drapg Member

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    :confused:

    if "infinity3" and "infinity4" are just the number of values between 3&4 and 4&5 respectively, how is one greater than the other? The number of values between each group of digits, is equal.

    However, if "infinity3" = the summation of all values between 3&4 and "infinity4" = the summation of all values between 4&5, than your premise (or Descartes', as the case may be), appears to be true.
     
  15. PhiSlammaJamma

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    drapG. What you are saying is somewhat correct. But it's simpler than that.

    you know 4.14..... is larger than 3.14.......... Yet both are infinite.
     
  16. drapg

    drapg Member

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    ahh, got it
     
  17. AMS_blackwidow

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    AYAYAyayAYAYA im so so confused, my head hurts:confused:
     
  18. Bailey

    Bailey Veteran Member

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    I always thought of inifinity as a concept, rather than trying to consider it as a number, which has a specific magnitude.

    However the number 4.14...... isn't infinite is it? It has an infinite number of digits, but that isn't the same thing. Or not to my mind anyway.

    The comparison I always heard with magnitudes of infinity was positive and negative numbers.

    There are an infinite number of positive whole numbers (just keep counting forever).

    How many whole numbers are there in total (positive and negative)? Twice as many as the infinite number of positive numbers?
     
  19. Refman

    Refman Member

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    DANGER WILL ROBINSON DANGER!!!!!!!

    Jesus...I have a headache after reading the math mixed with metaphysics above. :eek:
     
  20. Bailey

    Bailey Veteran Member

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    :D I have to admit I did a course called "Knowledge and Reality" in the Philosophy department too...
     

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