How to find generators in $U(n)$? - Mathematics Stack Exchange
2017年11月12日 · Your question is kind of ambiguous as it's been worded currently, but I assume that you're asking about the generators of $\mathrm{U}(n)$, i.e. the group of elements of …
For what $n$ is $U_n$ cyclic? - Mathematics Stack Exchange
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Mnemonic for Integration by Parts formula? - Mathematics Stack …
2018年11月11日 · The Integration by Parts formula may be stated as: $$\\int uv' = uv - \\int u'v.$$ I wonder if anyone has a clever mnemonic for the above formula. What I often do is to derive it …
How do we calculate factorials for numbers with decimal places?
I was playing with my calculator when I tried $1.5!$. It came out to be $1.32934038817$. Now my question is that isn't factorial for natural numbers only? Like $2!$ is $2\\times1$, but how do …
Equation of a rectangle - Mathematics Stack Exchange
2011年10月2日 · Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for …
Divergence of series sin(1/n) - Mathematics Stack Exchange
2017年7月2日 · Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for …
Homotopy groups U(N) and SU(N): $\\pi_m(U(N))=\\pi_m(SU(N))$
2017年10月3日 · Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for …
Difference between "≈", "≃", and "≅" - Mathematics Stack Exchange
In my work "=" is the identity of a number so it states an equivalence. 1=1, 2x=10 ie x =5. The approximation sign "≈" I use for decimal approximations with tilde "~" being a rougher …
combinatorics - Probability of winning a prize in a raffle ...
2011年12月16日 · You'll be surprised. The correct probability of winning at least one ticket is around $0.2242$. Assuming exactly one prize is given, your answer of $\frac{1}{160}$ is the pr
Mathematics Stack Exchange
Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their …