what is $e$ really? what is its meaning?
17754
Intuitive Understanding of the constant "$e$"
124988
$E=kT$ or $\frac32kT$?
1869
Why does $\lim_{n\to\infty}(1+\frac{1}{n})^n = e$ instead of $1$?
42711
What does $$ mean in the shell?
34815
How to read “E = (mc)²” so as not to mistake for “E = mc²”
42745
Validity and Equivalence of two definitions of the real exponential function
109109
Show that $E(XE[X|G])=E[(E[X|G)^2]$
141685
Why is expectation defined by $\int xf(x)dx$?
90796
Inequality Regarding e
103008
What does !$ mean?
62867
Is $E^2=(mc^2)^2+(pc)^2$ correct, or is $E=mc^2$ the correct one?
17809
How come such different methods result in the same number, $e$?
115028
If $e=\lim\limits_{x\to \infty} (1+x^{-1})^x$, why doesn't $e=1$?
122603
How does $\mathcal E(\rho)=\mathrm{Tr}_{env}[U(\rho\otimes\rho_{env})U^\dagger]$ turn into $P_0\rho P_0+P_1\rho P_1$?
123844
conditional expectation: an implication
72735
Understanding the proof of a formula for $p^e\Vert n!$
37533
Emission of EM radiation from an electron