docs: public static double euclideanSq(TupleDesc_F64 a, TupleDesc_F64 b) {
  		final int N = a.value.length;
  		double total = 0;
  		for( int i = 0; i < N; i++ ) {
  			double d = a.value[i]-b.value[i];
  			total += d*d;
  		}
  
  		return total;
  	}