Fred Kline
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 Mar 19 comment Where can square roots come from when they are not distances? That is not correct. $3 * 7 = 21$ and $7>21^{\frac{1}{2}}$ Feb 15 comment Deep Learning / Deep neural nets for mathematician @DelioMugnolo, additional observation---D-WAVE's quantum computer is analog. Feb 15 comment Deep Learning / Deep neural nets for mathematician @DelioMugnolo, When I experimented with neural nets (as a hobby), I saw the analogy to bridge networks---plug in an unknown resistor (say) and read its value on a meter. The pieces of the bridge would be somewhat like the nodes of a neural net. It is only my take on the process. Jan 14 comment Pronunciation of ¡ (inverted exclamation mark, historically used for subfactorial) GNAB = GNAB, Not A Bang Jan 5 comment Proposals for polymath projects One possible finite set to evaluate: Each prime in the product is found in half of the square-free divisors of the product: Table[GCD[Divisors[2*3*5*7], n], {n, {2, 3, 5, 7}}] // MatrixForm $\left( \begin{array}{cccccccccccccccc} 1 & 2 & 1 & 1 & 2 & 1 & 2 & 2 & 1 & 1 & 2 & 1 & 2 & 2 & 1 & 2 \\ 1 & 1 & 3 & 1 & 3 & 1 & 1 & 1 & 3 & 3 & 3 & 1 & 3 & 1 & 3 & 3 \\ 1 & 1 & 1 & 5 & 1 & 1 & 5 & 1 & 5 & 1 & 5 & 5 & 1 & 5 & 5 & 5 \\ 1 & 1 & 1 & 1 & 1 & 7 & 1 & 7 & 1 & 7 & 1 & 7 & 7 & 7 & 7 & 7 \\ \end{array} \right)$ Aug 18 revised The sum of squared logarithms conjecture corrected name Aug 18 suggested approved edit on The sum of squared logarithms conjecture May 22 comment For $k>3$ does there exist an odd prime $q_k$ such that $p_k=2^kq_k+1$ is prime and $p_k$ divides $a_k=\dfrac{3^{2^{k-1}}+1}{2}$? You can finish up by accepting one of the answers. Apr 16 awarded Yearling Apr 13 answered Deep Learning / Deep neural nets for mathematician Mar 26 comment Uninteresting questions with interesting answers @bubba, Carpenters call it kerf and they must account for it to build things. Sawmills do the same to determine board-feet of a log. The volume of this kerf is the sawdust. Feb 17 answered Insightful books about elementary mathematics Feb 10 comment Primes and Parity 1) Assuming Oppermann's conjecture, if you set $k=N+1$, you have primes in every interval. Don't know about the parity, though. Feb 7 comment Mathematics of Computer science and AI You can check out experimental-mathematics posts, here and at math.SE. Jan 28 comment Surveys of the items of Erdős' “toolbox” You might try Tricki. Jan 17 awarded Good Question Jan 17 revised $\prod_{n=1}^{\infty} n^{\mu(n)}=\frac{1}{4 \pi ^2}$ added a link Jan 11 revised Fundamental problems whose solution seems completely out of reach added link to new proof Jan 3 comment Are there any serious investigations of whether “mathematicians do their best work when they're young”? I think that as an individual becomes more accomplished in her specialty, her employer rewards her with promotions. Each step up that ladder requires more time for non-specialty duties. Therefore, less time for creativity and thus fewer papers. Dec 26 awarded Popular Question