Which is greater, $e^{\pi}$ or $\pi^e$?
21003
Comparing $\pi^e$ and $e^\pi$ without calculating them
24860
What can $E=mc^2$ do?
85311
Proving that $e^{\pi}-{\pi}^e\lt 1$ without using a calculator
109900
Why is $e^{\pi \sqrt{163}}$ almost an integer?
139411
Finding $\pi$ factorial
61794
Interesting and unexpected applications of $\pi$
24929
Why did Euler use e to represent complex numbers?
96328
Proving $e^{i\pi} = -1$ without proving $e^{ix} = \cos x + i\sin x$
35277
Why is $\mathbb{E}[X] = 1 + \sum^\infty_{k=1}\mathbb{P}(X > k)$ true?
105177
Gosper's unusual formula connecting $e$ and $\pi$
146873
Why is $\log(e^z)\ne z$ in complex analysis?
85764
Why is surface area not simply $2 \pi \int_{a}^{b} (y) dx$ instead of $2 \pi \int_a^b (y \cdot \sqrt{1 + y'^2}) dx$?
34918
Difference between $R^\infty$ and $R^\omega$
83290
How is the value of $\pi$ ( Pi ) actually calculated?
135638
The difference between \e and ^[
100549
If $e^A$ and $e^B$ commute, do $A$ and $B$ commute?
140459
Why is $\left(e^{2\pi i}\right)^i \neq e^{-2 \pi}$?