title: How can I type approximate equal sign in markdown jupyter
body: <p>I am trying to write following approximate equation in jupyter markdown.
  this is what I have tried: g$\approx$f</p>
  <p>I want to know if the syntax I used is the best way to write the equation?
  And is there any document for markdown mathematic syntax I can reference?</p>
  <p>Thanks:)</p>
  <p><a href="https://i.stack.imgur.com/b1sVo.png" rel="noreferrer"><img src="https://i.stack.imgur.com/b1sVo.png" alt="enter image description here" /></a></p>