/***********************************************************************      Copyright (C) 2001 Andrew Khan** This library is free software; you can redistribute it and/or* modify it under the terms of the GNU Lesser General Public* License as published by the Free Software Foundation; either* version 2.1 of the License, or (at your option) any later version.** This library is distributed in the hope that it will be useful,* but WITHOUT ANY WARRANTY; without even the implied warranty of* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU* Lesser General Public License for more details.** You should have received a copy of the GNU Lesser General Public* License along with this library; if not, write to the Free Software* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA***************************************************************************/package jxl.write;import jxl.format.CellFormat;import jxl.write.biff.FormulaRecord;/** * A cell, created by user applications, which contains a numerical value */public class Formula extends FormulaRecord implements WritableCell{  /**   * Constructs the formula   *   * @param c the column   * @param r the row   * @param form the  formula   */  public Formula(int c, int r, String form)  {    super(c, r, form);  }  /**   * Constructs a formula   *   * @param c the column   * @param r the row   * @param form the formula   * @param st the cell style   */  public Formula(int c, int r, String form, CellFormat st)  {    super(c, r, form, st);  }  /**   * Copy constructor   *   * @param c the column   * @param r the row   * @param f the record to  copy   */  protected Formula(int c, int r, Formula f)  {    super(c, r, f);  }  /**   * Implementation of the deep copy function   *   * @param col the column which the new cell will occupy   * @param row the row which the new cell will occupy   * @return  a copy of this cell, which can then be added to the sheet   */  public WritableCell copyTo(int col, int row)  {    return new Formula(col, row, this);  }}