15 Apr 08
Originally posted by FabianFnasNot enough info for definite answer. kbaumen had one.
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.
Here is another: 420766
f(x)=x-225211
or in kbaumen's answer:
f(x)=0.351592x
There's other answers as well.
15 Apr 08
Originally posted by broblutoMy 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.
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.
15 Apr 08
Originally posted by kbaumenI know. The poster should have been more specific.
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.
15 Apr 08
Originally posted by broblutoI'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.
I know. The poster should have been more specific.
15 Apr 08
Originally posted by broblutoDo not mupltiply these numbers, just look at them for positioning of the numbers.
The answer is:
F(645977)=244549
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.
15 Apr 08
Originally posted by broblutoWell this looks really elegant. Should be the intended solution. Congrats.
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.
15 Apr 08
Originally posted by broblutoQuite right. Well done 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.
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!