docs: public static void printCode(Matrix m) {
  		PrintWriter out=new PrintWriter(System.out);
  		if (m.getColumnCount()==1) {
  			out.print('{');
  			out.print(m.getQuick(0, 0));
  			for (int row=1; row<m.getRowCount(); row++) {
  				out.print(", ");
  				out.print(m.getQuick(row, 0));
  			}
  			out.println('}');
  		} else {
  			out.println('{');
  			for (int row=0; row<m.getRowCount(); row++) {
  				out.print("\t{");
  				out.print(m.getQuick(row, 0));
  				for (int col=1; col<m.getColumnCount(); col++) {
  					out.print(", ");
  					out.print(m.getQuick(row, col));
  				}
  				out.print('}');
  				if (row<m.getRowCount()-1)
  					out.println(',');
  				else
  					out.println();
  			}
  			out.println('}');
  		}
  		out.flush();
  	}