code: public void declareInternalData(int maxRows, int maxCols) {
          this.maxRows = maxRows;
          this.maxCols = maxCols;
  
          U_tran = new DMatrixRMaj(maxRows,maxRows);
          Qm = new DMatrixRMaj(maxRows,maxRows);
  
          r_row = new double[ maxCols ];
      }
docs: Declares the internal data structures so that it can process matrices up to the specified size.
  
  @param maxRows
  @param maxCols