Alex Nelson
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 Jun 17 revised How to compute this integral involving sech? Updated TeX formatting slightly Apr 20 revised Why the $\zeta$ letter is like this? Fixed tags Apr 11 revised Evaluate $\int_{0}^{\pi/4}\frac{6 - 6\sin^{2}(x)}{2\cos^2(x)} \mathrm{d}x$ Improved the tex formatting Mar 10 revised Topological Quantum Field theories Added some more explanation Feb 20 revised Identity $\int_{-\infty}^{\infty}\frac{e^{uz}}{1+e^u} \mathrm{d}u=\frac{\pi}{\sin(\pi z)}$ Modified title, updated some TeX Aug 9 revised Understanding mathematical set theory syntax added 461 characters in body Aug 9 revised Understanding mathematical set theory syntax Improved TeX Aug 6 revised Cohomology ring of $U(n)$ Improved TeX Aug 3 revised Optimize database indexes, the sequel Improved grammar Aug 3 revised Optimize database indexes, the sequel Improved formatting Jul 25 revised When are $3$ vectors associative in triple cross products? Improved the TeX formatting Dec 25 revised A relationship between matrices, bernoulli polynomials, and binomial coefficients added 1217 characters in body Dec 23 revised Division into $x(x-1)$ TeX-ed it up Nov 24 revised How to prove a manifold is diffeomorphic to Euclidean space? TeX-ed it up... Nov 24 revised Derived Functors TeX-ed up the math Nov 23 revised Find $dy$ and evaluate $dy$ given $y=e^\frac{x}{10}$ , $x = 0$ and $dx = 0.1$ added 5 characters in body Nov 23 revised number of subgroups of $\mathbb{Z}_{5}\times\mathbb{Z}_{5}$ Used TeX... Jul 23 revised The number $\frac{1}{\sqrt{5}}\left[\left(\frac{1+\sqrt{5}}{2}\right)^{n}-\left(\frac{1-\sqrt{5}}{2}\right)^n\right]$ is always an integer Texed it up Jul 10 revised Help on Generating function - Analysis of Median of three - Quick Select Cleaned it up a little, added more explanation Jul 10 revised Help on Generating function - Analysis of Median of three - Quick Select Cleaned it up a little, added more explanation