This is an example post showing how math renders. Inline: $\int_0^\infty e^{-x^2},dx = \frac{\sqrt{\pi}}{2}$.
Display mode:
$$\sum_{n=1}^{\infty} \frac{1}{n^2} = \frac{\pi^2}{6}.$$
Using the mathbox shortcode
Let $f \colon [a,b] \to \mathbb{R}$ be continuous. Then $$\int_a^b f(x)\,dx = F(b) - F(a)$$ where $F$ is any antiderivative of $f$.
Syntax highlighting
def euler(n):
"""Euler's totient function via inclusion-exclusion."""
result = n
p = 2
while p * p <= n:
if n % p == 0:
while n % p == 0:
n //= p
result -= result // p
p += 1
if n > 1:
result -= result // n
return result