public LastComputeStage(int D, int N, float W_re[], float W_im[])
public LastComputeStage(int D, int N, float W_re4[], float W_im4[])
  public LastComputeStage(int D, int N, float W_re[], float W_im[])   {     super(D, N, W_re, W_im);   } 