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 1 year, 8 months
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  • Last seen May 19 at 4:55

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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
2 Graph $G$ with Degree $\ge 2$ must contain a cycle Apr 26
2 Drawing Arrows on a Cubical May 3
2 Connected Graph With Minimum Degree May 4
2 Probability of rolling two dice with either showing a six Dec 3 '17
2 Newton's Method with Cubic Convergence (three taylor terms instead of two) Jan 28 '18
2 How many nondecreasing functions $f: \{1, 2, 3, \ldots, 15\} \to \{1, 2, 3, 4, 5\}$ are there? Jan 28 '18
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