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• 36 Evaluate:: $ 2 \sum_{n=1}^\infty \frac{(-1)^{n+1}}{n+1}\left( 1 + \frac12 +\cdots + \frac 1n\right) $
• 33 How can I make points "glow"?
• 32 Derivation of asymptotic solution of $\tan(x) = x$.
• 26 Finding the value of $\sqrt{1+2\sqrt{2+3\sqrt{3+4\sqrt{4+5\sqrt{5+\dots}}}}}$
• 24 Approximation to the Lambert W function
• 23 Rounding is asymptotically useless?
• 22 Showing that $\gamma = -\int_0^{\infty} e^{-t} \log t \,dt$, where $\gamma$ is the Euler-Mascheroni constant.
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