**TI83F* Program file dated 06/03/03, 17:30 DIFF2G1J???R??*INITIAL)Xj*?X?*YINITIAL)Xj*?Y?*YINITIAL)Xj*?D?*STEP)SIZEj*?H?c qc HN?N]?N]?N]?1?X]J?Y]J?D]J?DpH^D?YpHDY?XpHX?Jp1J?JmN?1?+]+]+?+]+]+?ߟC