public double evaluate(VectorInstance x,VectorInstance y) throws Exception {
  VectorInstance diff=x.subtract(y);
  double result=-m_gamma * diff.dotProduct(diff);
  return Math.exp(result);
}

public double evaluate ( VectorInstance x , VectorInstance y ) throws Exception { VectorInstance diff = x . subtract ( y ) ; double result = - m_gamma * diff . dotProduct ( diff ) ; return Math . exp ( result ) ; }
compute the result of the kernel evaluation on the supplied vectors
