öλÔÓéÀֵǼÈë¿ÚÏÂÔØ

Ô­ÎÄÄÚÈÝÀ´×ÔÃâ·ÑöλÔÓéÀÖ¹Ù·½appÏÂÔØÂÛ̳£¬Çëµã»÷²é¿´È«ÎÄ
http://bbs.freekaoyan.com/thread-576443-1-1.html
ÕâÊÇ2010Äê°æ±¾µÄÀîÓÀÀÖ¸´Ï°È«Êé  ÉÏÃæµÄ¹ØÓڵݹ鷽³ÌÔËÓ÷½·¨ÎÒ×öµÄÓеãì¶Ü

ÏÈÉÏͼ

Õâ4µÀÌâÄ¿¶¼ÊǹØÓڵݹ鷽³ÌµÄ  Ç°3µÀÌâ »ù±¾ÉÏÊǼÙÉ躯Êý£¬Ç󵼵óöÎÞÂÛAn»òÕßXn ȡʲôֵ£¬An+1 Xn+1¶¼Êǵ¥µ÷ÔöµÄ£¬ÎªÊ²Ã´Í¬ÑùµØ·½·¨ÓÃÔÚµÚËÄÌ⣨¿ÎºóÏ°ÌâËÄÖ¤Ã÷ÌâÓë¼ÆËãÌâµÚ2Ì⣩ È´²»ÐУ¬È«ÊéµÄÕâÖÖ·½·¨´æÔÚʲô½âÊÍ»òÕßÇ°ÌáÌõ¼þÂð
¸½¼þ: ÄãÐèÒªµÇ¼²Å¿ÉÒÔÏÂÔØ»ò²é¿´¸½¼þ¡£Ã»ÓÐÕʺţ¿×¢²á
-----------------------------------------------------------------
±¾Ìû×îºóÓÉ xuyelei20 ÓÚ 2011-8-22 12:35 ±à¼­

Xn+1=ln£¨1+Xn£©  X1´óÓÚ0 ÄÇôËùÓÐXn´óÓÚ0  Çóµ¼ÖªXn+1µ¥µ÷ÔöµÄ   µ°ÌÛ ½áÂÛÈ´Êǵ¥µ÷¼õ£¬µ¥µ÷¼õµÄ·½·¨ÎÒÒ²Ã÷°×£¬Ã¬¶Ü°¡£¬ÀÏÀî³öÊéÔõôÕâô²»ÑϽ÷°¡  ÄãÇ°Ãæ¸ø³öµÄÇóµ¼·½·¨ ΪʲôÕâÀïÈ´ÓÃÕâÖÖ·½·¨£¬Ã¬¶ÜÒ²²»½âÊÍÏÂ

-----------------------------------------------------------------
ÓôÃÆ 11111111111111
-----------------------------------------------------------------
an+1 = f(an)ÓÉÀ­¸ñÀÊÈÕÖÐÖµ¶¨ÀíÓÐ
an+1 ¨C an = f¡¯(x1)(an ¨C an-1)
         =f¡¯(x1)f¡¯(x2)(an-1 ¨C an-2)
=¡­¡­..= f¡¯(x1)¡­¡­f¡¯(xn-1)(a2 - a1)
¶ÔÓÚµ¼Êý>0µÄf(x)¶øÑÔ£¬an+1 ¨C anµÄ·ûºÅÈ¡¾öÓÚa2 - a1£¬ÓÚÊÇÓÐ
a2 - a1>0ʱ£¬an+1 ¨C an>0£¬ÊýÁе¥µ÷Ôö£»·´Ö®£¬µ¥µ÷µÝ¼õ¡£

-----------------------------------------------------------------
Ò²¿ÉÒÔ¿´³ö£¬µ¼ÊýºãСÓÚÁãʱ£¬an+1 ¨C an µÄ·ûºÅÊǽ»Ìæ±ä»¯µÄ¡£
¸Ã·½·¨²»¾ßÓÐÆÕ±éÊÊÓÃÐÔ£¬½¨Òé·ÅÆú¡£