title: Pandas: df.mul vs df.rmul
body: <p>Can anybody help me understand the difference (if any) between the two methods: <code>df.mul</code> and <code>df.rmul</code>? The documentation looks identical:</p>
  <p><a href="https://pandas.pydata.org/docs/reference/api/pandas.DataFrame.mul.html" rel="nofollow noreferrer">docs for mul</a></p>
  <p><a href="https://pandas.pydata.org/docs/reference/api/pandas.DataFrame.rmul.html" rel="nofollow noreferrer">docs for rmul</a></p>