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 Feb 18 revised Graph generated by Voronoi diagrams major edition, problem reformulation Apr 15 revised Introductory book about economic models with deterministic chaos edited title Mar 20 revised Is there efficient way of finding last number in following sequence added 46 characters in body Mar 20 revised Is there efficient way of finding last number in following sequence added 84 characters in body Mar 20 revised Is there efficient way of finding last number in following sequence added 125 characters in body Mar 19 revised For which minimal $k$ true is that ${4}^{k}\cdot n\leq \displaystyle\sum^{n}_{i=1}{a}_{i}^{k}\leq {5}^{k}\cdot n$, ${a}_{i}\in {1,2,3,4,5,6}$? edited tags Mar 19 revised For which minimal $k$ true is that ${4}^{k}\cdot n\leq \displaystyle\sum^{n}_{i=1}{a}_{i}^{k}\leq {5}^{k}\cdot n$, ${a}_{i}\in {1,2,3,4,5,6}$? edited tags Mar 19 revised For which minimal $k$ true is that ${4}^{k}\cdot n\leq \displaystyle\sum^{n}_{i=1}{a}_{i}^{k}\leq {5}^{k}\cdot n$, ${a}_{i}\in {1,2,3,4,5,6}$? deleted 1 characters in body; edited tags Mar 19 revised For which minimal $k$ true is that ${4}^{k}\cdot n\leq \displaystyle\sum^{n}_{i=1}{a}_{i}^{k}\leq {5}^{k}\cdot n$, ${a}_{i}\in {1,2,3,4,5,6}$? edited title Mar 19 revised For which minimal $k$ true is that ${4}^{k}\cdot n\leq \displaystyle\sum^{n}_{i=1}{a}_{i}^{k}\leq {5}^{k}\cdot n$, ${a}_{i}\in {1,2,3,4,5,6}$? refined TeX Feb 22 revised Might such a sequence of mathematical expectations be able to predict uncertain events? added 51 characters in body Feb 13 revised What is the distribution of empirical covariance between two independent normal distributions? added 509 characters in body Jan 28 revised $u$~$N(0,A)$ and z$|u$~$N(u,1)$ how to show that $u|z$~$N(Bz,B)$ where $B=A/(A+1)$? deleted 61 characters in body Jan 28 revised $u$~$N(0,A)$ and z$|u$~$N(u,1)$ how to show that $u|z$~$N(Bz,B)$ where $B=A/(A+1)$? added 7 characters in body; edited title Jan 28 revised $u$~$N(0,A)$ and z$|u$~$N(u,1)$ how to show that $u|z$~$N(Bz,B)$ where $B=A/(A+1)$? edited tags Jan 23 revised Find $C$, if $A=CBC$, where $A$,$B$,$C$ are symmetric matrices. deleted 367 characters in body Jan 23 revised Find $C$, if $A=CBC$, where $A$,$B$,$C$ are symmetric matrices. idea of solution added Jan 23 revised Find $C$, if $A=CBC$, where $A$,$B$,$C$ are symmetric matrices. idea of solution added Jan 23 revised Find $C$, if $A=CBC$, where $A$,$B$,$C$ are symmetric matrices. added 21 characters in body Aug 8 revised What is the sum of $\sum\limits_{i=1}^{n}ip^i$? added 128 characters in body