Znn3bq.jpeg
²é¿´: 1729  |  »Ø¸´: 10
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

ÍØº£1627

½ð³æ (ÕýʽдÊÖ)

[ÇóÖú] ³¤·½ÌåÌå»ýÓë±íÃæ»ýÔÚÊýÖµÉϵĶÔÓ¦¹ØÏµ£¿ ÒÑÓÐ1È˲ÎÓë

¶ÔÓÚÒ»¸öûÓÐÔ¼ÊøµÄ³¤·½Ì壨³¤x£¬¿íy£¬¸ßz£©£¬ÈçºÎÇóÖªÆäÌå»ýxyzÓëÃæ»ý2£¨xy+yz+xz£©ÔÚÊýÖµÉϵĶÔÓ¦¹ØÏµ£¿
ÇóÖ¸µã£¬Ð»Ð»£¡
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

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

feixiaolin

ÈÙÓþ°æÖ÷ (ÎÄ̳¾«Ó¢)

ÓÅÐã°æÖ÷

ÒýÓûØÌû:
3Â¥: Originally posted by ÍØº£1627 at 2015-01-07 18:48:27
лл°ïÖú£¬²»¹ý»¹ÊÇÓеãÄÑÒÔÀí½â£¬ÓÐûÓÐÊýÖµÉϵĶÔÓ¦¹ØÏµ£¿
±¾À´ÊÇÏëÇó½âʲôʱºòÃæ»ý×îС£¬¶øÌå»ý×î´óµÄÒ»¸öÎÊÌâ¡£

xyz-k*(xy+yz+zx) >= xyz-k*pow(xy*yz*zx, 1/3)/3 = xyz-k*pow(xyz,2/3)/3
S.T.  x=y=z
7Â¥2015-01-08 16:26:56
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 11 ¸ö»Ø´ð

feixiaolin

ÈÙÓþ°æÖ÷ (ÎÄ̳¾«Ó¢)

ÓÅÐã°æÖ÷

¿ÉÒÔ¿¼ÂÇÏòÁ¿¹ØÏµ£¬¼ûͼƬ
³¤·½ÌåÌå»ýÓë±íÃæ»ýÔÚÊýÖµÉϵĶÔÓ¦¹ØÏµ£¿
00.PNG

2Â¥2015-01-07 16:15:38
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

ÍØº£1627

½ð³æ (ÕýʽдÊÖ)

лл°ïÖú£¬²»¹ý»¹ÊÇÓеãÄÑÒÔÀí½â£¬ÓÐûÓÐÊýÖµÉϵĶÔÓ¦¹ØÏµ£¿
±¾À´ÊÇÏëÇó½âʲôʱºòÃæ»ý×îС£¬¶øÌå»ý×î´óµÄÒ»¸öÎÊÌâ¡£
3Â¥2015-01-07 18:48:27
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

feixiaolin

ÈÙÓþ°æÖ÷ (ÎÄ̳¾«Ó¢)

ÓÅÐã°æÖ÷

ÒýÓûØÌû:
3Â¥: Originally posted by ÍØº£1627 at 2015-01-07 18:48:27
лл°ïÖú£¬²»¹ý»¹ÊÇÓеãÄÑÒÔÀí½â£¬ÓÐûÓÐÊýÖµÉϵĶÔÓ¦¹ØÏµ£¿
±¾À´ÊÇÏëÇó½âʲôʱºòÃæ»ý×îС£¬¶øÌå»ý×î´óµÄÒ»¸öÎÊÌâ¡£

×îÓÅ»¯ÎÊÌâ
max(xyz-k*(xy+yz+zx))

[ ·¢×ÔСľ³æ¿Í»§¶Ë ]
4Â¥2015-01-07 22:12:17
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] Çóµ÷¼ÁÍÆ¼ö +8 СÄô°®Ñ§Ï° 2026-04-14 8/400 2026-04-16 07:22 by ѧԱJpLReM
[¿¼ÑÐ] 297£¬¹¤¿Æµ÷¼Á? +3 ºÓÄÏũҵ´óѧ-ÄÜ 2026-04-14 3/150 2026-04-15 22:02 by noqvsozv
[¿¼ÑÐ] 291 Çóµ÷¼Á +40 »¯¹¤2026½ì±ÏÒµÉ 2026-04-09 41/2050 2026-04-15 21:54 by noqvsozv
[¿¼ÑÐ] ҩѧ305Çóµ÷¼Á +7 Â꿨°Í¿¨boom 2026-04-11 7/350 2026-04-15 13:21 by Î÷±±Íû¡ª·çɳ
[¿¼ÑÐ] 071000ÉúÎïѧµ÷¼ÁÇóÖú +18 zzzzwww 2026-04-09 21/1050 2026-04-14 15:39 by zs92450
[¿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¸Î÷½»»úеר˶Çóµ÷¼Á +9 ÇóÉϰ¶µÄСÍõ 2026-04-10 9/450 2026-04-13 16:08 by jiangguiquan11
[¿¼ÑÐ] 22408 352·ÖÇóµ÷¼Á +5 ŬÁ¦µÄÏÄÄ© 2026-04-09 5/250 2026-04-12 19:17 by wj165256
[¿¼ÑÐ] µçÆø×¨Ë¶320Çóµ÷¼Á +6 СÂé×Ó111 2026-04-10 6/300 2026-04-12 10:54 by lemon6009
[¿¼ÑÐ] 326Çóµ÷¼Á +6 Shansyn 2026-04-10 6/300 2026-04-12 09:46 by hammer3
[¿¼ÑÐ] 284Çóµ÷¼Á +11 archer.. 2026-04-09 12/600 2026-04-11 20:23 by À¶ÔÆË¼Óê
[¿¼ÑÐ] µ÷¼Á +5 ÎĵÀÐÇ̨ 2026-04-11 5/250 2026-04-11 15:01 by ¿­¿­Òª±ä˧
[¿¼ÑÐ] 085410 273·Öµ÷¼Á +4 X1999 2026-04-09 4/200 2026-04-11 13:05 by pies112
[¿¼ÑÐ] 296Çóµ÷¼Á +6 Íô£¡£¿£¡ 2026-04-09 6/300 2026-04-11 11:25 by zhq0425
[¿¼ÑÐ] Ò»Ö¾Ô¸985»úеѧ˶380Çóµ÷¼Á +5 ¹Ø¹ØöÂð¯10 2026-04-11 5/250 2026-04-11 10:10 by ÖªÄî¡£A
[¿¼ÑÐ] 297Çóµ÷¼Á +9 Kwgyz 2026-04-09 9/450 2026-04-11 10:09 by zhq0425
[¿¼ÑÐ] Ò»Ö¾Ô¸¶«±±´óѧ¿ØÖƹ¤³Ì085406Êý¶þÓ¢¶þ385£¬Çóµ÷¼Á +8 Ezra_Zhang 2026-04-09 8/400 2026-04-11 09:15 by Öí»á·É
[¿¼ÑÐ] 22408 366·Ö£¬±¾¿Æ211£¬Ò»Ö¾Ô¸Î÷¹¤´ó +4 Rubt 2026-04-09 4/200 2026-04-10 19:51 by chemisry
[¿¼ÑÐ] 337Çóµ÷¼Á +4 Gky09300550£¬ 2026-04-09 4/200 2026-04-09 17:18 by ÅÁ¶ûÂíÀ­ÌØ
[¿¼ÑÐ] 0860004 Çóµ÷¼Á 309·Ö +6 Yin DY 2026-04-09 6/300 2026-04-09 10:19 by °¡Àî999
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û