This page is purely experimental, as I have never used Github Page before, nor have I ever used Jekyll in my life.
Here, I would like to thank 田琦 / Tian Qi for his wonderful template that I am using right now, its name is TeXt.
Mathjax test
This is an inline expression $x^2$.
This is a function
$$x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}.$$
Today is the last day of 2021, I sincerely wish for a better world the upcoming year.