Slashdot Mirror

← Back to Stories (view on slashdot.org)

5 Trillion Digits of Pi — a New World Record

Posted by timothy on from the obsessions-unleashed dept.

KPexEA writes "Alexander J. Yee & Shigeru Kondo claim to have calculated the number pi to 5 trillion places, on a single desktop and in record time. The main computation took 90 days on Shigeru Kondo's desktop. Verification was done using two separate computers. The program that was used for the main computation is y-cruncher v0.5.4.9138 Alpha." Looks like the chart of computer-era approximations of Pi here might need an update.

6 of 299 comments (clear)

  1. Re:KGB it! by sigmoid_balance · · Score: 5, Insightful

    Actually there is an algorithm to compute the n-th digit of Pi without computing the rest.

  2. Trillion? by Lord+Lode · · Score: 2, Insightful

    Trillion in which language? How many zeros does it have?

  3. Re:Mathematical Masturbation by MichaelSmith · · Score: 2, Insightful

    There might actually be something interesting in there. Lots of discoveries have been made by people who were just trying things out or seeing what they could see.

    --
    http://michaelsmith.id.au
  4. Re:Are they exact? by grumbel · · Score: 4, Insightful

    Knowing that the algorithm is correct and the implementation was codec correctly doesn't help you when you have faulty RAM that flips a bit.

  5. Re:Update... by unixcrab · · Score: 2, Insightful

    They stopped updating it when it was very convincingly proven in the bible that pi is exactly equal to 3.

  6. Re:Mind-numbing computational outsourcing by Anne_Nonymous · · Score: 2, Insightful

    The same way the robots know they've finished calculating Pi.