title: Should I import a math library, and if so how?
body: <p>So I want to print out the math functions, "PI" and "E."</p>
  
  <p>Here is how I'm trying to do it:</p>
  
  <pre><code>System.out.println(Math.PI);
  System.out.println(Math.E);
  </code></pre>
  
  <p>I think I have to import the math library. </p>