This post demonstrates how LaTeX renders in a Jekyll blog post.
Inline math: $a^2 + b^2 = c^2$
A more complete equation:
\[\sum_{n=1}^{\infty} \frac{1}{n^2} = \frac{\pi^2}{6}\]
And a system of equations:
\[\begin{cases}
x + y = 5 \\
2x - y = 1
\end{cases}\]