How to use LaTeX numbered equations using kramdown in jekyll

Question

Can kramdowni use equation numbers with engine in jekyll? It seems that the previous engine marukusupported the numbering of equations. I wanted to use zero numbering and cross-references supported by MathJax.

I tried

$$
\begin{equation}
a + b = c \label{abc}
\end{equation}
$$

Equation \eqref{abc} is ...

and I got:

Answer 1

Try the following:

$$
\begin{equation}
a + b = c \tag{abc}\label{eq:one}
\end{equation} 
$$

I refer you to e\eqref{eq:one}.