New posts in pi

$r=1-\sin(\theta)$ horizontal and vertical tangents

Prove there are no hidden messages in Pi

Astonishing: the sum of two infinite products of nested radicals equal to $ \pi $.

Intuition why a combined inscribed and circumscribed polygon converge faster to $\pi$?

Why is $\frac{7 \cosh(\sqrt 6)}{13}$ near $\pi$?

Showing $\pi/(2\sqrt3)=1-1/5+1/7-1/11+1/13-1/17+1/19-\cdots$

Prove that $\pi$ is a transcendental number

Explain why $e^{i\pi} = -1$ to an $8^{th}$ grader?

My teacher said that $2\pi$ radians is not exactly $360^{\circ}$? [closed]

Log of a negative number

Geometric Interpretation of the Basel Problem?

Proof that $\pi$ is rational

How to convert $\pi$ to base 16?

What are your favorite relations between e and pi? [closed]

Any proof to $\pi^{e}$'s irrationality?

On the formula, $\pi = \frac 5\varphi\cdot\frac 2{\sqrt{2+\sqrt{2+\varphi}}}\cdot\frac 2{\sqrt{2+\sqrt{2+\sqrt{2+\varphi}}}}\cdots$

Show that $\int\limits_0^1 \left(x^{x}\right)^{\left(x^{x}\right)^{\left(x^{x}\right)^{\left(x^{x}\right)^{⋰}}}}\ \mathrm{d}x=\frac{\pi^2}{12}$.

Another integral for $\pi$

Which results depend on the irrationality of $\pi$?

Proving that $\left(\frac{\pi}{2}\right)^{2}=1+\sum_{k=1}^{\infty}\frac{(2k-1)\zeta(2k)}{2^{2k-1}}$.