title: How to write algebra formulas in android xml
body: <p>Here is an example </p>
  
  <p><a href="https://play.google.com/store/apps/details?id=com.entertainment.algebra_calculator_1" rel="nofollow">https://play.google.com/store/apps/details?id=com.entertainment.algebra_calculator_1</a></p>
  
  <p>I just wanted to know how the formulas are written in xml like 1/x, superscripts, subscripts.</p>