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Posers and Puzzles

Posers and Puzzles

  1. 15 Apr '08 13:25
    If I say that f(347329) = 122118
    Then what is f(645977)?

    If you can't solve it today, I'll give you give you another f(n) tomorrow at this time.
  2. 15 Apr '08 13:28
    227120.1635509848011539491375612?
  3. 15 Apr '08 13:52
    Originally posted by FabianFnas
    If I say that f(347329) = 122118
    Then what is f(645977)?

    If you can't solve it today, I'll give you give you another f(n) tomorrow at this time.
    Is f a homomorphism?
  4. 15 Apr '08 14:17
    Originally posted by FabianFnas
    If I say that f(347329) = 122118
    Then what is f(645977)?

    If you can't solve it today, I'll give you give you another f(n) tomorrow at this time.
    Not enough info for definite answer. kbaumen had one.

    Here is another: 420766

    f(x)=x-225211

    or in kbaumen's answer:

    f(x)=0.351592x

    There's other answers as well.
  5. 15 Apr '08 14:19
    Originally posted by Swlabr
    Is f a homomorphism?
    Yes, because that will reduce it to an infinite number of possible answers
  6. 15 Apr '08 15:05 / 3 edits
    Originally posted by mtthw
    Yes, because that will reduce it to an infinite number of possible answers
    To an infinite number, or from and infinite number?
  7. 15 Apr '08 15:23
    Originally posted by brobluto
    Not enough info for definite answer. kbaumen had one.

    Here is another: 420766

    f(x)=x-225211

    or in kbaumen's answer:

    f(x)=0.351592x

    There's other answers as well.
    My answer was intended to be sarcastic because it probably isn't calculation with brute force what the OP wanted to get from us. There must be a simple, yet incredibly difficult to notice, regularity between the numbers given.
  8. 15 Apr '08 15:29
    Originally posted by kbaumen
    My answer was intended to be sarcastic because it probably isn't calculation with brute force what the OP wanted to get from us. There must be a simple, yet incredibly difficult to notice, regularity between the numbers given.
    I know. The poster should have been more specific.
  9. 15 Apr '08 15:30 / 1 edit
    Originally posted by brobluto
    I know. The poster should have been more specific.
    Maybe. Depends on the solution.

    Anyway, I can't figure this one out.
  10. 15 Apr '08 15:31
    Originally posted by FabianFnas
    If I say that f(347329) = 122118
    Then what is f(645977)?

    If you can't solve it today, I'll give you give you another f(n) tomorrow at this time.
    The answer is:

    F(645977)=244549
  11. 15 Apr '08 15:49
    Originally posted by Swlabr
    To an infinite number, or from and infinite number?
    From an infinite number to a still infinite number.
  12. 15 Apr '08 15:51
    Originally posted by brobluto
    I know. The poster should have been more specific.
    I'm sure the poster knows full well it's not specific enough. I'm assuming that the solution will be an 'elegant' function, and we weren't necessarily expected to guess it with the first number. With more numbers a pattern will probably emerge.
  13. 15 Apr '08 16:08
    Originally posted by brobluto
    The answer is:

    F(645977)=244549
    Do not mupltiply these numbers, just look at them for positioning of the numbers.

    for f(abcdef) where a,b,c,d,e,f are integers between 0 and 9

    f(abcdef)=ghi

    where g,h,i are integers between 10 and 99 and:

    g=a*b
    h=c*d
    i=e*f

    So, F(283749)= (2*8) (3*7) (4*9) or (16)(21)(36) or 162136

    I'm sure there's probably some mathematical function or some more elegant way of explaining the relationship, but that's the pattern.
  14. 15 Apr '08 16:12
    Originally posted by brobluto
    Do not mupltiply these numbers, just look at them for positioning of the numbers.

    for f(abcdef) where a,b,c,d,e,f are integers between 0 and 9

    f(abcdef)=ghi

    where g,h,i are integers between 10 and 99 and:

    g=a*b
    h=c*d
    i=e*f

    So, F(283749)= (2*8) (3*7) (4*9) or (16)(21)(36) or 162136

    I'm sure there's probably some mathematical function or some more elegant way of explaining the relationship, but that's the pattern.
    Well this looks really elegant. Should be the intended solution. Congrats.
  15. 15 Apr '08 18:36
    Originally posted by brobluto
    Do not mupltiply these numbers, just look at them for positioning of the numbers.

    for f(abcdef) where a,b,c,d,e,f are integers between 0 and 9

    f(abcdef)=ghi

    where g,h,i are integers between 10 and 99 and:

    g=a*b
    h=c*d
    i=e*f

    So, F(283749)= (2*8) (3*7) (4*9) or (16)(21)(36) or 162136

    I'm sure there's probably some mathematical function or some more elegant way of explaining the relationship, but that's the pattern.
    Quite right. Well done brobluto!

    When I saw the answer of kbaumen: "227120.1635509848011539491375612" I couldn't help a little laugh, because he was so very near, less than 1% off. I wouldn't say something because it would be a hint. For a pure guess, it was pretty well done!