title: latex: uniform font size (font of a given size) in the formula, regardless of the content of the formula
body: <p>Tell me how to make the font size of a formula be the same throughout the formula.</p>
  
  <p>If you use the standard way of writing a formula, then in continued fractions and some other entries the font size starts to change, which is very bad</p>
  
  <p>For example:</p>
  
  <pre><code>\begin{multline*}
  \begin{split}
  1+\frac{1}{2+\frac{1}{3+\frac{1}{1+x}}}
  \end{split}
  \end{multline*}
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/ctA5J.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ctA5J.png" alt="enter image description here"></a></p>