const fs = require('fs');
const mjAPI = require("mathjax-node");

mjAPI.config({
  MathJax: {}
});
mjAPI.start();

let data = fs.readFileSync(0, 'utf-8');

mjAPI.typeset({
  math: data,
  format: "TeX",
  mml: true,
}, function (data) {
  if (!data.errors) {console.log(data.mml)}
});