title: Basic Input/Output help for online calculator I am developing
body: <p>Beginner coder here.
  I am currently developing a website for calculating various equations, but I need help with user input.
  On the HTML, I currently wrote up the following code.</p>
  
  <pre><code>    &lt;section&gt;
        &lt;!--- Celsius, Fahrenheit, Kelvin  --&gt;
        &lt;table&gt;
          &lt;tr&gt;
            &lt;td&gt;&amp;#176C&lt;/td&gt;
            &lt;td&gt;&amp;#176F&lt;/td&gt;
            &lt;td&gt;&amp;#176K&lt;/td&gt;
          &lt;/tr&gt;
          &lt;tr&gt;
            &lt;td&gt; &lt;input type="number" id="celsius"/&gt; &lt;/td&gt;
            &lt;td id="fahr1"&gt;&lt;/td&gt;
            &lt;td id="kelv1"&gt;&lt;/td&gt;
          &lt;/tr&gt;
          &lt;tr&gt;
            &lt;td&gt;later&lt;/td&gt;
            &lt;td&gt; &lt;input type="number" id="fahrenheit"/&gt; &lt;/td&gt;
            &lt;td&gt;later&lt;/td&gt;
          &lt;/tr&gt;
        &lt;/table&gt;
      &lt;/section&gt;
  </code></pre>
  
  <p>How would I go about changing the second and third row to change along with what the user inputs without having them have to press a submit button? How would I access the input that the user has given me in order to manipulate it into an output in the corresponding spot in the table?</p>