Mathematics
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james black

Apparently, this user prefers to keep an air of mystery about them.

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  • Member for 3 years, 3 months
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  • Last seen Dec 23 '20 at 6:22

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4 $\operatorname{rank}(AB-BA)=1$ implies $AB-BA$ is nilpotent Dec 20 '20
3 Newton's Method with Cubic Convergence (three taylor terms instead of two) Jan 28 '18
3 If $x+y=1$ then $x^{n+1}\sum\limits_{k=0}^n \binom{n+k}{k}y^k+y^{n+1}\sum\limits_{k=0}^n \binom{n+k}{k}x^k=1$ Feb 7 '18
3 Random Variables Proof $P(Y_1+Y_2+Y_3+…+Y_n=k)=\frac 1 {m^n} \sum (-1)^i \binom{n}{i} \binom{k-mi-1}{n-1}$ using binomial theorem Feb 14 '18
3 Show that a matrix is invertible with norm less than one Apr 17 '18
3 Voting Counting Problem With Generating Functions Mar 20 '19
2 Graph $G$ with Degree $\ge 2$ must contain a cycle Apr 26 '19
2 Connected Graph With Minimum Degree May 4 '19
2 Drawing Arrows on a Cubical May 3 '19
2 Second derivative test with non zero result Sep 20 '19
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