code: public static double[][] getNcsAsArray(Matrix4d[] ncsOperators) {
  		if(ncsOperators==null){
  			return new double[0][0];
  		}
  		double[][] outList = new double[ncsOperators.length][16];
  		for(int i=0; i<ncsOperators.length;i++){
  			outList[i] = convertToDoubleArray(ncsOperators[i]);
  		}
  		return outList;
  	}
docs: Get a list of length N*16 of a list of Matrix4d*N.
  @param ncsOperators the {@link Matrix4d} list
  @return the list of length N*16 of the list of matrices