Slashdot Mirror


Classic Math Puzzle Cracked

An anonymous reader writes "This is cool - if mind-bending. A century ago, a self-taught math genius from India noticed some patterns in how numbers can be created by adding other numbers. Now a grad student has finished the job showing that the patterns apply to all prime numbers, not just some. There's more on the Indian math guy here."

40 of 555 comments (clear)

  1. Let's not use real names or give any credit. by Leknor · · Score: 3, Funny

    Let's not use real names or give any credit to some guy.

    1. Re:Let's not use real names or give any credit. by Anonymous Coward · · Score: 3, Funny

      Ramanujan stole my job as a Perl coder!

  2. Interesting by winkydink · · Score: 4, Funny

    The Indian mathematician outsourced this to a US grad student

    --

    "I'd rather be a lightning rod than a seismometer." -Ken Kesey

    1. Re:Interesting by Anonymous Coward · · Score: 1, Funny

      This proves that outsourced projects take longer. Almost a century for crying out loud!

  3. yeah by cheese_wallet · · Score: 4, Funny

    a self-taught math genius from India noticed some patterns in how numbers can be created by adding other numbers.

    yeah, I saw that too. Like, how if you have a 4, and add a 1, you get a 5. It's pretty cool.

  4. meth by Anonymous Coward · · Score: 4, Funny

    "We would not have expected that the crank would have been the right answer to so many of these congruence theorems"

    ah crank.. is there anything it cant do?

  5. Na-hee-na-na-jar by Spankophile · · Score: 4, Funny

    "Na-hee, na-na-jar. Na-hee-na-na-jar.

    It's not that difficult."

    "Yeah, well at least your name isn't Michael Bolton."

    1. Re:Na-hee-na-na-jar by kryogen1x · · Score: 4, Funny

      "We'll be getting rid of these people here... First, Mr. Samir Naga... Naga... Naga... Not gonna work here anymore, anyway."

  6. Re:You could at least use his name in the article by woof321 · · Score: 2, Funny

    That German physics guy was in the news today, too. Interesting that they both came up with their ideas while working as a clerk. Maybe Dante and Randal will eventually lick cold fusion or something.

  7. You'd have had more street cred ... by A+nonymous+Coward · · Score: 3, Funny

    ... if you'd posted anonymously.

  8. Re:Alteranative Text by Anonymous Coward · · Score: 1, Funny

    Hate to reply to my own reply to my own reply to my own reply, but sorry for not mentioning how pretty rainbows are in the reply!

  9. Numbers were there before the big bang by arrowman · · Score: 5, Funny

    "how numbers can be created by adding other numbers"... that sounds more like the observation of an American presidency guy.

  10. Now you tell us. by Whyte+Panther · · Score: 2, Funny

    Does this mean I've been wasting my CPU cycles?

  11. Re:You could at least use his name in the article by craXORjack · · Score: 2, Funny

    I am a self taught web surfer from Indiana. I like puzzles and I like the way the editor drew me into the article by allowing me to discern the genius's name by noticing a pattern in the name of the embedded url. Just like Sesame Street's "One of these things is not like the others" game, audience participation turned this article from a whoa :( to a wow :D. I give it two hearty thumbs up!

    --
    Liberals call everyone Nazis yet they are the closest thing to it.
  12. Re:Timothy is racist by ovit · · Score: 2, Funny

    Not necessarily. He might just be an idiot.

  13. Re:You could at least use his name in the article by Ohreally_factor · · Score: 3, Funny

    This reminds me of that movie, you know? The one about that guy that did stuff?

    --
    It's not offtopic, dumbass. It's orthogonal.
  14. In other news... by BigBadDude · · Score: 5, Funny

    "A decade ago, a self-taught computer genius from Finland [...] There's more on the Finish computer guy here."

    (I think you get the point)

  15. Re:Srinivasa Ramanujan? by Zoinks · · Score: 3, Funny

    I'm surprised we got as much detail! Should be something like "Some smart guy from a long time ago did some smart things, and now some other smart guy made them better..." Duuuuuh, that's what *I* got my degree for!

  16. Desperately seeking kelp by Zoinks · · Score: 2, Funny

    I would like to encrypt my credit card information for sending it over the Internet. Can someone *please* help me use this article to do that? I mean, where do I plug in the credit card number? Does it matter that mine doesn't end in "4" or "9"? Do I need the CCV?

  17. Re:Vaguest post I've ever seen by quarkscat · · Score: 2, Funny

    Not only that, but in other news:

    MSFT has just submitted a software patent on
    adding numbers together, based upon this f(n).

    The number 7(TM) has been brought to you by MSFT.

  18. We need more Indian math geniuses by Anonymous Coward · · Score: 1, Funny

    Seriously, the dude at 7-11 totally fucked up my change last time I bought a Slurpee.

  19. wife? mother? by joako · · Score: 2, Funny

    "Ramanujan had always lived in a tropical climate and had his mother (later his wife) to cook for him: now he faced the English winter, and he had to do all his own cooking to adhere to his caste's strict dietary rules." Wow.. I really think they could have worded that better.

  20. Calling him "Indian" is racist by Anonymous Coward · · Score: 2, Funny

    I think he should be called a "Native American", or more specifically, his tribe, cherokee, apache, or iroquis.

    But Indian? Welcome to 1875, Mr. Racist.

    1. Re:Calling him "Indian" is racist by thesnarky1 · · Score: 2, Funny

      It's not "socially challenged", its "lonely and bored on a friday night

  21. If only Ramanujan had lived longer by mincognito · · Score: 2, Funny

    But when your number's up...

  22. Re:Don't kid yourself. by QMO · · Score: 2, Funny

    "I find your lack of faith disturbing."

    "Never underestimate the power of the [fans]."

    Elvis is a good example of the strange things people will do for a dead guy. (Except, he's not really dead, right?)

    --
    Exam 4/C again. Maybe I'll do better this time.
  23. Re:Srinivasa Ramanujan? by Hrodvitnir · · Score: 3, Funny

    I heard Iceland just granted citizenship to some American chess player or something. He's also suing the U.S. for some reason.

    --
    "There are more important things than stopping terrorism. Upholding the Constitution is one of them." - Ars Forumer.
  24. Re:Srinivasa Ramanujan? by Anonymous Coward · · Score: 3, Funny

    Long live Finlandia!

  25. Re:You forgot: by Bloomy · · Score: 2, Funny
    But 24^3 = 13824. Though 25^3 + (-24)^3 + (-4)^3 + (-2)^3 = 1729

    But if we use negative integers, 1729 gets trumped by 0, since x^3 + (-x)^3 = 0 for all integers.

  26. True story (I may post it again sometime) by QMO · · Score: 3, Funny

    As a math graduate student student I was invited to watch the presentations of the people applying for a graduate faculty position at the university. I was only able to make it to one of the presentations, but it was an unforgetable experience for me.

    The applicant gave a very interesting presentation. I got lost during the first 5 minutes when he was still giving background, but it was still interesting. His presentation was on - assuming that I remember any of the very little that I may have understood - some specific behaviors of the infinite boundaries of n-dimensional manifolds.

    The best part was when he said, "In case you think that this is just esoteric and 'out there,' I want you to know that this stuff has real applications in topology."

    There were about 6 other grad students and 15 math faculty there and I think I was the only one to notice how funny that was, so I'm sorry if you don't get the joke.

    --
    Exam 4/C again. Maybe I'll do better this time.
  27. Re:Srinivasa Ramanujan? by carpe_noctem · · Score: 4, Funny

    If they can catch the dupes, mispellings, and other obvious errors, I'm all for outsourcing slashdot.

    --
    "Quoting famous computer scientists out of context is the root of all evil (or at least most of it) in programming." - K
  28. Re:Why is this important to us? by Anonymous Coward · · Score: 1, Funny

    You are oh so wrong! I have developed an algorithm that will compress any file to an arbitrarily small size! There are still a few problems with accuracy, but it really works, given enough time.

  29. Re:Srinivasa Ramanujan? by Anonymous Coward · · Score: 1, Funny

    an American being a world-class cricket player

    BAHAHAHAHAHAHAHAHAHAhahahahahahahaha!!!! ...wheeeeeeze...

    BAHAHAHAHAHAHAHAHAHAhahahahahahahaha!!!

    stop it - you're killing me...

    I'd really *really* like to see that, as it would complete my view that reality is just one great big acid trip.

    I get your point, but thats fucking hilarious.

  30. Re:Srinivasa Ramanujan? by Anonymous Coward · · Score: 1, Funny

    Call the Grecians!!!

  31. Re:Obilgatory story by Anonymous Coward · · Score: 1, Funny
    Reminds me of an introduction in a textbook (it might have been a quantum mechanics book, i cannot remember).

    it said "the world needs another quantum mechanics textbook the way it needs another table of known integers". probably the best joke i've read doing physics homework at 4 in the morning.

  32. Re:Obilgatory story by biobogonics · · Score: 3, Funny

    Obilgatory story (Score:5, Interesting)
    by uniqueCondition (769252) on Tuesday March 22, @07:45PM (#12018209)
    GH Hardy (he wrote A Mathematician's Apology) speaking of Ramanujan:

    I remember once going to see him when he was lying ill at Putney. I had ridden in taxi cab number 1729 and remarked that the number seemed to me rather a dull one, and that I hoped it was not an unfavorable omen. "No," he replied, "it is a very interesting number; it is the smallest number expressible as the sum of two cubes in two different ways."

    (London 1940).


    A funny co-incidence happened about 10 years ago that brought this story to mind when I moved back from A2 to Detroit. Our new phone number ended in 1729. Of course my GF complained that it would be hard to remember since it was such an un-interesting phone number!

  33. Beautiful pun! by Anonymous Coward · · Score: 1, Funny
    There's more on the Finish computer guy here [kernel.org].

    By an amazing coincidence, Bill Gates is the Start (menu) guy!

  34. Re:Srinivasa Ramanujan? by famebait · · Score: 5, Funny

    All the nerds with jobs will be there, those in the US will be burger flippers (*) or on the street, and Slashdot's future audience will be over in India.

    This will in turn reduce productivity in India so much that America becomes competitive again! Brilliant!

    --
    sudo ergo sum
  35. Re:Srinivasa Ramanujan? by Jesus_666 · · Score: 2, Funny

    Bose, anyone?

    No, I prefer Bang & Olufsen. But thanks for the offer.

    --
    USE HOT GRITS WITH STATUE OF NATALIE PORTMAN (NAKED AND PETRIFIED)
  36. Re:some guy??????? by ForemastJack · · Score: 2, Funny

    "I'm also surprised that the Slashdot editors let this story be published without correcting it!! What, are story submissions now governed by a perl script?"

    Unlikely.

    I, for one, have considerable confidence that a fairly simple perl script could at least competently produce basic English spelling and grammar.