Number Patterns

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November 25th 2008, 03:28 PM
Linnus

Number Patterns

I can't seem to figure out the pattern in this:
1001, 502, 254, 110, __, __
November 25th 2008, 03:47 PM
skeeter

Quote:

Originally Posted by Linnus

I can't seem to figure out the pattern in this:
1001, 502, 254, 110, __, __

neither could I, this was definitely not one to "guess" at ... I got a cubic regression to fit the data using my calculator.

$y = -24.5x^3 + 272.5x^2 - 1145x + 1898$

$y(1) = 1001$

$y(2) = 502$

$y(3) = 254$

$y(4) = 110$

$y(5) = -77$

$y(6) = -454$

whoever came up with this should be slapped.
November 25th 2008, 04:02 PM
Linnus

Quote:

Originally Posted by skeeter

neither could I, this was definitely not one to "guess" at ... I got a cubic regression to fit the data using my calculator.

$y = -24.5x^3 + 272.5x^2 - 1145x + 1898$

$y(1) = 1001$

$y(2) = 502$

$y(3) = 254$

$y(4) = 110$

$y(5) = -77$

$y(6) = -454$

whoever came up with this should be slapped.

Yea, I tried that too.

But wouldn't you put 1001, 502, 254 in list 1 and 502, 254, and 110 in list 2 because if y=pattern
then y(1001)=502, y(502)=254, and y(254)=110?
November 25th 2008, 04:40 PM
Linnus

Apparently...the pattern was lacking some numbers...but I still can't figure out the new pattern

1001, 502, 254, 205, 133, 110,__, __

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