Ramanujan's $\sqrt{\frac{\pi e}{2}}$ formula
47596
An infinite series plus a continued fraction by Ramanujan
7500
$\arctan$ of a square root as a rational multiple of $\pi$
137060
Evaluating $\int_0^{\tfrac{\pi}{4}}\ln(\cos x-\sin x)\ln(\cos x) dx - \int_0^{\tfrac{\pi}{4}}\ln(\cos x+\sin x)\ln(\sin x)dx=\frac{G\ln 2}{2}$
147363
Is $\large \frac {\pi}{e}$ rational, irrational, or trandescendal?
37603
Finding the Integer part of $\sum_{k=2} ^{9999}\frac{1}{\sqrt k}$
130686
How is $3\pi-10$ element of $[-\pi/2,\pi/2]$?
105679
Can $\pi$ or $e$ be a root of a polynomial with algebraic coefficients?
109900
Why is $e^{\pi \sqrt{163}}$ almost an integer?
8784
modulo version of the quadratic formula and Euler's criterion
95426
How to compute $ \frac{1}{\sqrt{2\pi}} \int_{-\infty}^\infty \frac{e^{-{x^2}/{2}}}{1+e^{-(ax+b)}}\,\mathrm dx $ when $b \ne 0$
24022
Compute $\int _0 ^{2\pi} (\sum_{n=1}^\infty \frac {\cos(nx)}{2^n})^2 dx$
48363
Nested Radical of Ramanujan
83290
How is the value of $\pi$ ( Pi ) actually calculated?
65645
Express $w$ and $\frac1w$ for $w=\frac {\sqrt2+\sqrt3}{\sqrt5-\sqrt3}$ in the simplest form with a rational denominator
79044
Using the residue theorem, calculate $\int_{0}^{2\pi}\frac{1}{1-2a\cos{\theta}+a^2}d\theta$
83325
Integral of $\frac{\sqrt{x^2+1}}{x}$
96414
Using residues to evaluate the integral $\int_{-\pi}^{\pi} \frac{\cos(n\theta)}{1-2a\cos(\theta)+a^2}d\theta$, $|a|<1$