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Re: RE: Re: One quiz at a time

Posted: 21:18 Sat 28 Mar 2020
by akzy
winesecretary wrote:
12:37 Sat 28 Mar 2020
All the wines scored points?
They did on the other two nights in questions... but not on the others :)
PhilW wrote:
20:30 Sat 28 Mar 2020

The determinant of the matrix for the scores on the evening mentioned in the question is 50, whereas the determinants of the other two evenings' scores are both -6. I'm not sure if this helps.

Guess: the determinant of the scores matrix for the evening was even?
*so, so close*

Re: RE: Re: One quiz at a time

Posted: 17:39 Sun 12 Apr 2020
by DRT
akzy wrote:
21:18 Sat 28 Mar 2020
winesecretary wrote:
12:37 Sat 28 Mar 2020
All the wines scored points?
They did on the other two nights in questions... but not on the others :)
PhilW wrote:
20:30 Sat 28 Mar 2020

The determinant of the matrix for the scores on the evening mentioned in the question is 50, whereas the determinants of the other two evenings' scores are both -6. I'm not sure if this helps.

Guess: the determinant of the scores matrix for the evening was even?
*so, so close*
The determinant of the matrix for the scores of the evening in question was the highest of the year, whereas those with -6 were the lowest.

Re: RE: Re: One quiz at a time

Posted: 18:35 Sun 12 Apr 2020
by akzy
DRT wrote:
17:39 Sun 12 Apr 2020
The determinant of the matrix for the scores of the evening in question was the highest of the year, whereas those with -6 were the lowest.
Correct! I'm always pleased by the mathematics of tpf.

Re: One quiz at a time

Posted: 12:44 Wed 22 Apr 2020
by DRT
akzy wrote:
18:35 Sun 12 Apr 2020
DRT wrote:
17:39 Sun 12 Apr 2020
The determinant of the matrix for the scores of the evening in question was the highest of the year, whereas those with -6 were the lowest.
Correct! I'm always pleased by the mathematics of tpf.
88)

Excuse my tardiness, I only just noticed that I got the correct answer.

Someone else please feel free to seize ancient powers and pose the next question.

Re: One quiz at a time

Posted: 23:22 Wed 22 Apr 2020
by winesecretary
Next four numbers in this sequence: 1,2,3,5...

Re: One quiz at a time

Posted: 14:10 Thu 23 Apr 2020
by flash_uk
8, 13, 21, 34

Re: One quiz at a time

Posted: 14:40 Thu 23 Apr 2020
by Doggett
Or equally it could be... 7, 11, 13, 17

Re: One quiz at a time

Posted: 14:48 Thu 23 Apr 2020
by winesecretary
I see where Mike is coming from, but this is not a purely mathematical question...

Re: One quiz at a time

Posted: 15:16 Thu 23 Apr 2020
by PhilW
Since this is (at times) pedants' corner, I feel I should highlight that "1" is not generally considered to prime, which would be a potential barrier to Doggett's reply. That said, I have yet to be convinced that the definition of primality should necessarily be such as to cause the number "1" to be excluded from the set of primes; I would therefore accept Doggett's reply as at least a valid possibility (though clearly also wrong from winesecretary's reply), while at the same time recognising the need for me to justify (or change, based on coherent debate) my position with fellow mathematicians, perhaps over some fine port one evening.

Re: One quiz at a time

Posted: 15:55 Thu 23 Apr 2020
by winesecretary
I too have been guilty of imprecision. My previous response might be obscuring the questioner's intention. I should instead have said "Should one, here, be following the rule?"

Re: One quiz at a time

Posted: 16:04 Thu 23 Apr 2020
by akzy
I have 3999 solutions...
https://oeis.org/search?q=1%2c2%2c3%2c5&fmt=short

None of them have anything to do with Port or wine.

Re: One quiz at a time

Posted: 16:19 Thu 23 Apr 2020
by Doggett
Only 3999... very poor. More effort and port required! 😀

Re: One quiz at a time

Posted: 16:59 Thu 23 Apr 2020
by PhilW
akzy wrote:
16:04 Thu 23 Apr 2020
I have 3999 solutions...
https://oeis.org/search?q=1%2c2%2c3%2c5&fmt=short
Interesting source (you big cheat).
Matula-Goebel numbers of rooted identity trees; how could we have missed that? So obvious now someone has said it!

Re: One quiz at a time

Posted: 17:57 Thu 23 Apr 2020
by winesecretary
Dana-Scott's sequence has the next number right; albeit that is merely coincidence...

Re: One quiz at a time

Posted: 22:03 Thu 23 Apr 2020
by DRT
8, 14, 25,345. That was easy.

Difficult to believe that I've won two maths questions in a row but it is what it is.

Next question: by how many votes will Donald Trump win the next US Presidential Election?

Re: One quiz at a time

Posted: 06:37 Fri 24 Apr 2020
by winesecretary
Alas no. It is port related. The sequence runs 1,2,3,5,13,14...

Re: One quiz at a time

Posted: 08:44 Fri 24 Apr 2020
by akzy
PhilW wrote:
16:59 Thu 23 Apr 2020
Interesting source (you big cheat).
Matula-Goebel numbers of rooted identity trees; how could we have missed that? So obvious now someone has said it!
I can't believe you think searching through a large database of integer sequences is cheating :D