Znn3bq.jpeg
²é¿´: 3637  |  »Ø¸´: 7
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

tengfly

Ìú¸Ëľ³æ (ÖøÃûдÊÖ)

[ÇóÖú] Õâ¸öÊýÁÐÔõôÓõ¥µ÷Óнç×¼ÔòÇó¼«ÏÞ£¿ ÒÑÓÐ3È˲ÎÓë

»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

ÊýѧÀÏѧͽ

½ð³æ (СÓÐÃûÆø)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
tengfly: ½ð±Ò+6, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2015-10-16 12:33:11
δÀ´ÊôÓÚ¿ªÍØÕß
5Â¥2015-10-16 12:01:33
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 8 ¸ö»Ø´ð

liuqh

Ìú¸Ëľ³æ (ÕýʽдÊÖ)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
ÏÈÖ¤µ¥µ÷£¬ÔÙÖ¤Óн磬×îºóÇó¼«ÏÞ
1.µ¥µ÷µÄÖ¤Ã÷£¬¶Ôx(n+1)-xn>0ÔËÓÃÊýѧ¹éÄÉ·¨
2.ÓнçµÄÖ¤Ã÷£¬¶Ôxn<aÔËÓÃÊýѧ¹éÄÉ·¨
3.Çó¼«ÏÞ£¬É輫ÏÞΪx,Ôòx=1/2*a+1/2*x^2,Çó½âÉáÈ¥²»ºÏÀíµÄ½âµÃx=1-sqrt(1-a)
2Â¥2015-10-16 11:28:45
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

bluesine

Ìú¸Ëľ³æ (Ö°Òµ×÷¼Ò)

¿ÆÔ·Ð¡Ä¾³æ

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï ¡ï ¡ï
¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
tengfly: ½ð±Ò+4, ¡ïÓаïÖú, лл 2015-10-16 12:32:39
ÓùéÄÉ·¨Ö¤Ã÷µ¥µ÷Óн磬Ó÷½³ÌÇó¼«ÏÞ£º

˼·£º¼ÙÉ輫ÏÞ´æÔÚ£¬ÉèΪx,ÄÇôÓÐx  = a/2 + x^2/2
µÃµ½¼«ÏÞΪx = 1+sqrt(1-a) ¡¾ÉḺֵ¡¿
Ö¤Ã÷£º
£¨1£©µ¥µ÷ÐÔ£º
n=1ʱ,x2 -x1 = a/2 + x1^2/2 -  x1 >0
¼ÙÉèn=kʱ x(k)-x(k-1)>0,ÄÇô
n=k+1ʱ x(k+1)-x(k)= a/2 + x(k)^2/2   - [a/2 + x(k-1)^2/2] =1/2*(x(k)^2 - x(k-2)^2) >0
£¨2£©Óнç
n=1ʱ,x1  = a/2 < 1+sqrt(1-a)
¼ÙÉèn=kʱ x(k)<1+sqrt(1-a),ÄÇô
n=k+1ʱ x(k+1)= a/2+ x(k)^2/2<a/2+1/2*(1+1-a+2*sqrt(1-a))=1+sqrt(1-a)
£¨3£©ÓÐ(1ºÍ2)ÖªµÀx{n}µ¥µ÷Óн磬Òò´Ë¼«ÏÞ´æÔÚ£¬Ê£ÏÂͬԭʼ˼·
°åµÊÒª×öÊ®ÄêÀäÎÄÕ²»·¢Ò»¸ö×Ö
3Â¥2015-10-16 11:38:12
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

bluesine

Ìú¸Ëľ³æ (Ö°Òµ×÷¼Ò)

¿ÆÔ·Ð¡Ä¾³æ

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

ÒýÓûØÌû:
3Â¥: Originally posted by bluesine at 2015-10-16 11:38:12
ÓùéÄÉ·¨Ö¤Ã÷µ¥µ÷Óн磬Ó÷½³ÌÇó¼«ÏÞ£º

˼·£º¼ÙÉ輫ÏÞ´æÔÚ£¬ÉèΪx,ÄÇôÓÐx  = a/2 + x^2/2
µÃµ½¼«ÏÞΪx = 1+sqrt(1-a) ¡¾ÉḺֵ¡¿
Ö¤Ã÷£º
£¨1£©µ¥µ÷ÐÔ£º
n=1ʱ,x2 -x1 = a/2 + x1^2/2 -  x1 >0
¼ÙÉèn= ...

д´íÁË£¬x = 1-sqrt(1-a)
°åµÊÒª×öÊ®ÄêÀäÎÄÕ²»·¢Ò»¸ö×Ö
4Â¥2015-10-16 11:39:01
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] ҩѧÇóµ÷¼Á +12 à¶¹þ¼ÓÓÍ 2026-04-14 14/700 2026-04-15 23:49 by ³ÂƤƤ
[¿¼ÑÐ] ²ÄÁÏÏà¹Ø×¨Òµ344Çóµ÷¼ÁË«·Ç¹¤¿ÆÑ§Ð£»ò¿ÎÌâ×é +21 hualkop 2026-04-12 23/1150 2026-04-15 22:02 by hualkop
[¿¼ÑÐ] Çóµ÷¼Á +11 СÄô°®Ñ§Ï° 2026-04-11 15/750 2026-04-15 21:57 by noqvsozv
[¿¼ÑÐ] 291 Çóµ÷¼Á +40 »¯¹¤2026½ì±ÏÒµÉ 2026-04-09 41/2050 2026-04-15 21:54 by noqvsozv
[¿¼ÑÐ] ͨÐŹ¤³ÌÇóµ÷¼Á£¡£¡£¡ +6 zlb770521 2026-04-14 6/300 2026-04-15 20:00 by ѧԱJpLReM
[¿¼ÑÐ] ²ÄÁÏ299ר˶Çóµ÷¼Á +17 +21 2026-04-09 17/850 2026-04-15 17:20 by zs92450
[¿¼ÑÐ] 211±¾¿Æ²ÄÁÏ»¯¹¤Çóµ÷¼Á +19 YHLAH 2026-04-11 23/1150 2026-04-14 22:25 by fenglj492
[¿¼ÑÐ] Çóµ÷¼Á +12 ºÎÆøÕý 2026-04-13 13/650 2026-04-14 14:47 by zs92450
[¿¼ÑÐ] 085404 298·ÖÇóµ÷¼Á +11 ºôÀ²ºôÀ²ºôºôºô 2026-04-10 12/600 2026-04-14 08:38 by wfj257
[¿¼ÑÐ] 2026˶ʿµ÷¼Á_Äܶ¯_ºÓÄÏũҵ´óѧ +4 ºÓÄÏũҵ´óѧ-ÄÜ 2026-04-12 4/200 2026-04-13 22:01 by bljnqdcc
[¿¼ÑÐ] Ò»Ö¾Ô¸085802 323·ÖÇóµ÷¼Á +13 drizzle_9 2026-04-12 14/700 2026-04-13 10:26 by Faiz5552
[¿¼ÑÐ] 0831Ò»ÂÖµ÷¼Áʧ°ÜÇóÖú +10 СÐÜî£î£_s 2026-04-11 10/500 2026-04-12 22:43 by ³¤¹­°Á
[¿¼ÑÐ] 344 ²ÄÁÏרҵ Çóµ÷¼Á211 ÎÞµØÓòÒªÇó +8 hualkop 2026-04-11 8/400 2026-04-12 22:24 by fqwang
[¿¼ÑÐ] 2±¾£¬³õÊÔ303£¬0860Çóµ÷¼Á +6 floriea 2026-04-12 8/400 2026-04-12 18:13 by zhouxiaoyu
[¿¼ÑÐ] 291Çóµ÷¼Á +8 ¹ØÒä±±. 2026-04-11 8/400 2026-04-12 09:32 by ÄæË®³Ë·ç
[¿¼ÑÐ] 307Çóµ÷¼Á +10 tzq94092 2026-04-10 10/500 2026-04-12 08:18 by wise999
[¿¼ÑÐ] 359Çóµ÷¼Á +5 θ¾·ÂÎÀÛÁË 2026-04-11 5/250 2026-04-11 19:55 by lbsjt
[¿¼ÑÐ] 085600²ÄÁÏÓ뻯¹¤329·ÖÇóµ÷¼Á +16 Ò¶zilin 2026-04-10 16/800 2026-04-11 11:04 by may_ÐÂÓî
[¿¼ÑÐ] ¿¼Ñе÷¼Á +26 ˶ÐǸ° 2026-04-09 27/1350 2026-04-10 22:24 by Öí»á·É
[¿¼ÑÐ] 344Çóµ÷¼Á +7 ؼ·çѩҹ¹éÈËØ¼ 2026-04-09 7/350 2026-04-10 12:05 by pengliang8036
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û