This document supports inline !
Here’s the proof: \frac{n!}{k!(n-k)!} = \binom{n}{k}
Creating a footnote is easy.
Here’s an equation:
x = a_0 + \cfrac{1}{a_1 + \cfrac{1}{a_2 + \cfrac{1}{a_3 + \cfrac{1}{a_4} } } }
Here are some numbered equations:
f(x)=(x+a)(x+b)
5^2 - 5 = 20
a = bq + r
Here’s some multi-line math stuff:
\begin{align*} f(x) &= (x+a)(x+b) \\ &= x^2 + (a+b)x + ab \end{align*}