/**
   A class of static methods to perform various mathematical
   computations, including the square root.
   @author Frank M. Carrano
   @author Timothy M. Henry
   @version 4.0
*/
public class OurMath
{
   /** Computes the square root of a nonnegative real number.
       @param value  A real value whose square root is desired.
       @return  The square root of the given value.
       @throws  SquareRootException if value < 0. */
   public static double squareRoot(double value) throws SquareRootException
   {
      if (value < 0)
         throw new SquareRootException();
      else
         return Math.sqrt(value);
   } // end squareRoot
   
   // < Other methods not relevant to this discussion are here. >
} // end OurMath