±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 2315  |  »Ø¸´: 13

wumz

½ð³æ (СÓÐÃûÆø)

²»¹ýÕýÈç8Â¥ËùÑÔ£¬Õý¶¨¾ØÕóÒ»°ãÒªÇóÊǶԳƵ쬵«ÊǷǶԳƵľØÕóÒ²ÊÇ¿ÉÒÔ³ÆÎªÕý¶¨µÄ¡£Í¨³£½Ì¿ÆÊéÀïÃæËµµÃºÜ½÷É÷£¬ ˵µ½Õý¶¨¾ØÕóʱ¶¼Ëµ³ÉÊǶԳÆÕý¶¨¾ØÕó£¬Òò¶øÊµ¼ÊÉÏÒ²°µº¬ÁËÕý¶¨²¢²»ÒªÇó¶Ô³Æ¡£
ÒýÓûØÌû:
Originally posted by Pchief at 2010-10-23 18:46:47:
Õâ¶¼ÔÚÌÖÂÛЩʲô£¿ÎÒ·¢ÏÖÄãÃÇÎʵÄÈËÎʵÃÒ²²»Ã÷È·£¬´ðµÄÈËÒ²´ðµÃÏ¡ÀïºýÍ¿¡£

Ê×ÏÈ˵Îʵģº

AΪ¾ØÕó XΪÁÐÏòÁ¿£¬ÄÇô AX ×ÔȻҲÊÇÁÐÏòÁ¿¡£ ÄÇô AX>0 ʲôÒâ˼£¿Ò»¸öÁÐÏòÁ¿ÄÜ˵Ëü´óÓÚÁãÂ𣿻òÕß˵ 0 ±íʾÁã ...

11Â¥2010-10-23 22:09:04
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
¡ï
lxmmissing(½ð±Ò+1):лл²ÎÓë
12Â¥2010-10-23 22:19:33
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

lixy1217

ľ³æ (ÖøÃûдÊÖ)

¡ï
Сľ³æ(½ð±Ò+0.5):¸ø¸öºì°ü£¬Ð»Ð»»ØÌû½»Á÷
¾ØÕóÓë¾ØÕó£¬ÏòÁ¿ÓëÏòÁ¿Ö®¼äÊÇ¿ÉÒÔ½¨Á¢Ò»ÖÖ>¹ØÏµµÄ£¬ÕâÔÚÊýÖµ´úÊýÀïÓж¨Òå¹ý£¬Èç¹ûA>B£¬Ôò´ú±íAÖеÄÿ¸öÔªËØ¶¼´óÓÚBÖжÔӦλÖõÄÔªËØ£¬ËùÒÔAx>0¾ÍÊÇ˵¸ÃÏòÁ¿ËùÓÐÔªËØ¶¼>0£¬µ±È»Ò²¿ÉÒÔÕÒµ½Á½¸ö¾ØÕó»òÏòÁ¿£¬Ê¹ËûÃÇÖ®¼äÎÞ·¨´æÔÚ×Å´óÓÚ¹ØÏµ¡£ÖÁÓÚÕý¶¨µÄ¶¨Ò壬¾ÍÊǾØÕóA¶ÔÈÎÒâÏòÁ¿x£¬Âú×ã   x(תÖÃ)Ax > 0 £¬´ÓÕâÀï¿ÉÒÔ¿´µ½Õý¶¨²¢²»Ò»¶¨Òª¶Ô³Æ

Ôٻص½Â¥Ö÷µÄÎÊÌ⣬ÓÉÓÚÕý¶¨¾ØÕó¿ÉÒÔ´æÔÚ¸ºµÄÔªËØ£¬ËùÒÔÂ¥Ö÷µÄÃüÌâÏÔÈ»ÊÇ´íÎóµÄ£¬
±ÈÈçÁî
A=[1,-0.5   ; -0.5,1]       x=(0.0000001  ,   1)
ÏÔÈ»AÊÇÕý¶¨µÄ£¬¶øAxµÄµÚÒ»¸öÔªËØ¾ÍÊÇСÓÚ0µÄ

[ Last edited by lixy1217 on 2010-10-24 at 12:22 ]
ż¶û³¨¿ªÐÄì飬ÊÀ½ç½«²»Ôٹ¶À
13Â¥2010-10-24 12:18:31
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

lxmmissing

½ð³æ (ÕýʽдÊÖ)

ÒýÓûØÌû:
Originally posted by lixy1217 at 2010-10-24 12:18:31:
¾ØÕóÓë¾ØÕó£¬ÏòÁ¿ÓëÏòÁ¿Ö®¼äÊÇ¿ÉÒÔ½¨Á¢Ò»ÖÖ>¹ØÏµµÄ£¬ÕâÔÚÊýÖµ´úÊýÀïÓж¨Òå¹ý£¬Èç¹ûA>B£¬Ôò´ú±íAÖеÄÿ¸öÔªËØ¶¼´óÓÚBÖжÔӦλÖõÄÔªËØ£¬ËùÒÔAx>0¾ÍÊÇ˵¸ÃÏòÁ¿ËùÓÐÔªËØ¶¼>0£¬µ±È»Ò²¿ÉÒÔÕÒµ½Á½¸ö¾ØÕó»òÏò ...

лл~
°®Æ´²Å»áÓ®£¡
14Â¥2010-10-24 17:01:02
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ lxmmissing µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 305Çóµ÷¼Á +3 77Qi 2026-04-06 3/150 2026-04-06 15:36 by going home
[¿¼ÑÐ] ¿¼ÑÐÉúÎïÓëÒ½Ò©µ÷¼Á +8 Ìúº©º©123425 2026-03-31 9/450 2026-04-06 12:52 by lys0704
[¿¼ÑÐ] ²ÄÁÏ334Çóµ÷¼Á +19 Eecho# 2026-04-03 19/950 2026-04-06 08:37 by ССÊ÷2024
[¿¼ÑÐ] ²ÄÁÏÓ뻯¹¤371Çóµ÷¼Á +14 ÅãÁÕ¿´º£ 2026-04-04 15/750 2026-04-06 06:59 by houyaoxu
[¿¼ÑÐ] »·¾³285·Ö£¬¹ýÁù¼¶£¬Çóµ÷¼Á +10 xhr12 2026-04-02 10/500 2026-04-04 21:53 by bn53987
[¿¼ÑÐ] ²ÄÁÏÓ뻯¹¤306·ÖÕÒµ÷¼Á +23 ²×º£ÇáÖÛe 2026-04-02 27/1350 2026-04-04 21:52 by laoshidan
[¿¼ÑÐ] 333Çóµ÷¼Á +12 wfh030413@ 2026-04-03 13/650 2026-04-04 21:02 by jj987
[¿¼ÑÐ] 319Çóµ÷¼Á +4 ÐÇÐDz»Õ£ÑÛà¶ 2026-04-03 4/200 2026-04-04 16:25 by ÖзÉÔº¿Õ¹ÜѧԺÑ
[¿¼ÑÐ] ¸´ÊÔµ÷¼Á +6 ·¶¸ùÅà 2026-04-04 6/300 2026-04-04 14:27 by ÍÁľ˶ʿÕÐÉú
[¿¼ÑÐ] 311Çóµ÷¼Á +20 zchqwer 2026-04-01 22/1100 2026-04-03 22:09 by lglzsd
[¿¼ÑÐ] Çóµ÷¼Á»ú»á +5 ÒâȾivy 2026-04-03 5/250 2026-04-03 15:13 by qoooooo614
[¿¼ÑÐ] ר˶ 351 086100 Ò²ÊÇ¿¼µÄ²Ä¿Æ»ù ±¾¿ÆÒ²ÊDzÄÁÏ +8 202451007219 2026-04-02 8/400 2026-04-03 09:50 by À¶ÔÆË¼Óê
[¿¼²©] É격ÇóÖú +3 Reee1Llll 2026-04-01 3/150 2026-04-02 22:29 by ÕâÊÇÒ»¸öÎÞÁĵÄê
[¿¼ÑÐ] 279Çóµ÷¼Á +5 ¸µÎÄÇï 2026-04-02 5/250 2026-04-02 18:10 by ±ÊÂä½õÖÝ
[¿¼ÑÐ] Çóµ÷¼ÁÍÆ¼ö +3 ÄÏɽÄÏ@ 2026-04-01 3/150 2026-04-02 12:09 by xiaoranmu
[¿¼ÑÐ] 272Çóµ÷¼Á£¬½ÓÊÜ¿çרҵµ÷¼Á£¡ +4 ÏÐÓ㬠2026-03-31 4/200 2026-04-02 11:18 by guyan1000
[¿¼ÑÐ] 302Çóµ÷¼ÁÒ»Ö¾Ô¸±±º½070300£¬±¾¿ÆÖ£´ó»¯Ñ§ +8 Ê¥ÈÕ¶úÂüÌõ 2026-04-01 11/550 2026-04-02 07:40 by chemdavid
[¿¼ÑÐ] ʳƷѧ˶362Çóµ÷¼Á +3 xuanxianxian 2026-04-01 3/150 2026-04-01 21:05 by °¡Àî999
[¿¼ÑÐ] 08¹¤¿Æ£¬295£¬½ÓÊÜ¿çרҵµ÷¼Á +6 lmnlzy 2026-03-31 6/300 2026-04-01 11:02 by ÄæË®³Ë·ç
[¿¼ÑÐ] 0710ÉúÎïѧÇóµ÷¼Á£¡ +6 ÐðÊöÎÄ 2026-03-31 6/300 2026-04-01 09:39 by JourneyLucky
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û