title: Math.pow using fractional exponents
body: <p>This is the first code I've ever written. Here's a part of my code which is meant to calculate the side lengths of a cube and tetrahedron after the user gives a value for the volume, however The output is incorrect. I'm pretty sure I have the equations correct, maybe I'm using the Math.pow method incorrectly?</p>
  
  <pre><code>System.out.println("Now, please enter a volume for side or diameter calculation, then press ENTER: ");
  
  volume = input.nextDouble();
  cubeSide = Math.pow(volume, (1/3));
  sphereDiameter = Math.pow(volume / PI * 6, (1/3));
  tetSide = SQRT_2 * Math.pow(3 * volume, (1/3));
  
  System.out.println("");
  System.out.println("The Side of your CUBE is : " + cubeSide);
  System.out.println("");
  System.out.println("The Diameter of your SPHERE is : " + sphereDiameter);
  System.out.println("");
  System.out.println("The Side of your TETRAHEDRON is : " + tetSide);
  </code></pre>
  
  <p>Any ideas on how to get correct outputs?</p>