白板报 数学集锦 / 03.14
HACKER NEWS / REDDIT

圆周率集锦

讨论目录

31–60 / 13,083 条 · 第 2 / 437 页
  2. Reddit · r/Showerthoughts数位与应用2019-07-1635,086 分1,593 回复

    You can’t write the digits of pi backwards.

    97 条相关评论
  3. Reddit · r/explainlikeimfive计算与算法2021-08-1712,119 分1,480 回复

    [ELI5] What's the benefit of calculating Pi to now 62.8 trillion digits?

    186 条相关评论
  4. Reddit · r/todayilearned历史与文化2015-02-253,809 分1,886 回复

    TIL that this March 14 will be an extra special "Pi Day" because, for the only time this century, we will have 3/14/15 9:26:53!

    32 条相关评论
  6. Reddit · r/todayilearned计算与算法2015-03-123,477 分1,054 回复

    TIL You only need the first 39 digits of pi to accurately calculate the spherical volume of the universe

    97 条相关评论
  7. Reddit · r/IAmA历史与文化2013-03-142,134 分1,140 回复

    I'm Alex Fillipenko, Astrophysist at Berkeley, and contributor to History Channel's 'The Universe', promoting 3.14 pi day! AMA

    21 条相关评论
  8. Reddit · r/Showerthoughts数位与应用2018-04-1822,953 分784 回复

    You could add any numbers after 3.14159265358 and people would probably believe you if you said you knew the first 100 digits of pi

    71 条相关评论
  10. Reddit · r/askscience计算与算法2021-08-185,895 分633 回复

    Why is everyone computing tons of digits of Pi? Why not e, or the golden ratio, or other interesting constants? Or do we do that too, but it doesn't make the news? If so, why not?

    59 条相关评论
  11. Reddit · r/todayilearned数位与应用2012-07-221,541 分492 回复

    TIL there's an MIT sports cheer that includes "Cosine, secant, tangent, sine, 3.14159."

    39 条相关评论
  12. Reddit · r/programming计算与算法2022-06-102,036 分371 回复

    A Google Cloud employee set a new record calculating the 100 trillionth digit of pi

    40 条相关评论
  13. Reddit · r/askscience历史与文化2014-03-14866 分651 回复

    FAQ Friday: Pi Day Edition! Ask your pi questions inside.

    125 条相关评论
  14. Reddit · r/todayilearned计算与算法2019-11-065,621 分355 回复

    TIL bout Emma Haruka Iwao, a Japanese computer scientist who this year broke the record of most digits of Pi calculated, at 31.4 trillion.

    33 条相关评论
  16. Reddit · r/science计算与算法2021-08-172,489 分292 回复

    Swiss researchers calculate pi to new record of 62.8tn figures. Supercomputer calculation took 108 days and nine hours – 3.5 times as fast as previous record

    33 条相关评论
  17. Reddit · r/todayilearned数位与应用2015-10-261,312 分309 回复

    TIL: The first 10 million digits of Pi are almost completely and uniformly random, with no patterns detected.

    28 条相关评论
  19. Reddit · r/todayilearned计算与算法2016-06-153,214 分274 回复

    TIL with only 40 digits of PI, you could calculate the circumference of the entire universe to within a single hydrogen atom.

    25 条相关评论
  21. Reddit · r/technology计算与算法2022-06-091,169 分238 回复

    Google Cloud Sets World Record By Calculating Pi to 100 Trillion Digits

    24 条相关评论
  22. Reddit · r/todayilearned计算与算法2022-03-142,881 分200 回复

    TIL researchers from the University of Applied Sciences in Switzerland calculated the value of pi to over 62 trillion digits taking over 108 days to complete the calculation.

    29 条相关评论
  23. Reddit · r/Showerthoughts数位与应用2021-12-033,424 分213 回复

    If you tried to write out the entire number Pi, ie 3.14159…, no matter how many digits you write, you are still closer to the beginning of the number than the end.

    19 条相关评论
  24. Reddit · r/programming计算与算法2019-03-141,075 分235 回复

    Pi in the sky: Calculating a record-breaking 31.4 trillion digits of Archimedes’ constant on Google Cloud

    18 条相关评论
  25. Reddit · r/programming计算与算法2008-10-08730 分416 回复

    Don't calculate all the digits of Pi

    26 条相关评论
  27. Reddit · r/todayilearned历史与文化2015-05-183,775 分190 回复

    TIL that in 2006, it took Akira Haraguchi, a retired Japanese engineer, 16 hours to recite the first 100,000 digits of pi from memory only. To prove that the exercice was legitimate, everything was filmed, even his trip…

    16 条相关评论
  28. Reddit · r/todayilearned计算与算法2013-01-071,196 分252 回复

    TIL A 1.91TB file is available for download that contains PI to 5 trillion decimal places

    10 条相关评论
  29. Reddit · r/todayilearned定义与几何2016-11-072,433 分194 回复

    TIL You only need to use 39 digits of Pi to accurately determine the circumference of the universe to within the width of a single hydrogen atom. (Insert "your mom" jokes accordingly)

    11 条相关评论
  30. Reddit · r/askscience历史与文化2021-03-14829 分164 回复

    Pi Day Megathread 2021

    34 条相关评论