Is $\pi$ a "somewhat normal number"?
23705
Does $\pi$ contain all possible number combinations?
65300
Why is $\pi$ irrational?
133186
Understanding the "$\pi$" of a rotating disk
57769
Are half of all numbers odd?
111094
Help with proving that $\pi$ is irrational
104841
Can $\sin n$ get arbitrarily close to $1$ for $n\in\mathbb{N}?$
153664
When is $\Bbb{Z[\zeta_n]}$ a PID?
40837
Why $e^{i(π/3)} \ne -1$?
111898
Is $\{ (e^{2\pi i a n},e^{2\pi i b n }) : n \in \mathbb{Z} \}$ dense in the torus, where $a,b$ irrationals such that $a/b$ irrational?
48086
Why is this series of square root of twos equal $\pi$?
104548
Geometric proof for irrationality of $\pi$
105973
how do we know the BBP formula for $\pi$ is valid?
41700
Are Mersenne prime exponents always odd?
130686
How is $3\pi-10$ element of $[-\pi/2,\pi/2]$?
25232
Is this formula for the $n^{th}$ prime number useful?
120906
Is there a proof that $\pi \times e$ is irrational?
128098
Decimal Expansion of Pi