Issue After posting my first article, I found that seems MathJax “cannot” parse the newline symbol (\\) properly. Usually, we do latex like 1 2 f(x)=ax+b\\ g(x)=kx+d However, it does not work. Solution After checking the source code generated by Hugo, I found that seems all \\ would be replaced by \. I believe it was done by a kind of converting process. So the solution is quite easy: replace all \\ to \\\\.

一些术语 元组（Tuple），本文会与向量（Vector） 进行互换，虽存在细节差异，但是在本文上下文差别甚微，具体差别请参阅 Set, n-Tuple, Vector and Matrix — links and differences