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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.

2 of 299 comments (clear)

  1. Wow. by dtmos · · Score: 1, Offtopic

    A tour de force of math and computing hardware and software skills.

    Makes me want to turn in my geek card.

  2. Re:Are they exact? by Anonymous Coward · · Score: -1, Offtopic

    a) you can calculate those with a different algorithm

    b) we know an algorithm to directly calculate the nth binary digit of pi

    c) it provides a good testbed for research on number crunching : the advance in calculations are due to algorithmic improvments that can be reused for other problems

    Anyway, what part of the "research" concept don't you understand ?