²é¿´: 5323  |  »Ø¸´: 9
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

shy1992331

гæ (СÓÐÃûÆø)

[½»Á÷] sigma´úÊýµÄ¿ÉÊý²¢»¹ÊÇsigma´úÊýÂ𣿠ÒÑÓÐ3È˲ÎÓë

ÉèF1£¬F2£¬...ÊÇsigma´úÊý£¬ÄÇôF=¡ÈFnÊÇsigma´úÊýÂð£¿
1¡¢¿Õ¼¯ÊôÓÚF
2¡¢ÈôA ¡Ê F£¬ÄÇô±ØÓÐmʹµÃA ¡Ê Fm£¬ÓÉFmÊÇsigma´úÊý¿ÉÖª£ºAµÄÓ༯¡Ê Fm£¬ÔòAµÄÓ༯ ¡Ê F
3¡¢ÈôA1£¬A2£¬...¡Ê F£¬ÄÇô±ØÓÐm1£¬m2£¬...ʹµÃA1 ¡ÊFm1¡ÊF£¬A2 ¡ÊFm2 ¡ÊF£¬...Ôò¡ÈAn ¡Ê F
ÄÇôF»¹ÊÇsigma´úÊý£¿
ÒÔÉÏ˵Ã÷¶ÔÂð£¿
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

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

jabile

ľ³æ (ÕýʽдÊÖ)

3²»¶Ô

[ ·¢×ÔÊÖ»ú°æ http://muchong.com/3g ]
3Â¥2014-04-06 16:13:02
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 10 ¸ö»Ø´ð

wjlwyk

гæ (ÕýʽдÊÖ)

¡ï
Сľ³æ: ½ð±Ò+0.5, ¸ø¸öºì°ü£¬Ð»Ð»»ØÌû
˵°×µã£¬sigma´úÊý¾ÍÊǶԿÉÊý½»»ò²¢·â±ÕµÄ¼¯ºÏÀà
2Â¥2014-04-06 15:32:21
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

shy1992331

гæ (СÓÐÃûÆø)

ÒýÓûØÌû:
3Â¥: Originally posted by jabile at 2014-04-06 16:13:02
3²»¶Ô

Èç¹ûAi¡ÊBi£¬i=1£¬2£¬...,m£¬ÄÇô¡ÈAi¡Ê¡ÈBi£¨i´Ó1µ½m£©£¬µ«ÊÇÈç¹ûAi¡ÊBi£¬i=1£¬2£¬...²»ÄÜÍ˳ö¡ÈAi¡Ê¡ÈBi£¬ÕâÑùµÄ¹ØÏµÖ»¶ÔÓÐÏÞ²¢³ÉÁ¢£¬¶Ô¿ÉÊý²¢²»Ò»¶¨³ÉÁ¢¶ÔÂð£¿ËùÒÔÓÐÏÞ¸ösigma´úÊýµÄ²¢ÊÇsigma´úÊýµ«ÊÇ¿ÉÊý¸ösigma´úÊýµÄ²¢²»ÊÇsigma´úÊý£¬¶ÔÂð£¿
4Â¥2014-04-07 20:09:51
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

jabile

ľ³æ (ÕýʽдÊÖ)

ÒýÓûØÌû:
4Â¥: Originally posted by shy1992331 at 2014-04-07 20:09:51
Èç¹ûAi¡ÊBi£¬i=1£¬2£¬...,m£¬ÄÇô¡ÈAi¡Ê¡ÈBi£¨i´Ó1µ½m£©£¬µ«ÊÇÈç¹ûAi¡ÊBi£¬i=1£¬2£¬...²»ÄÜÍ˳ö¡ÈAi¡Ê¡ÈBi£¬ÕâÑùµÄ¹ØÏµÖ»¶ÔÓÐÏÞ²¢³ÉÁ¢£¬¶Ô¿ÉÊý²¢²»Ò»¶¨³ÉÁ¢¶ÔÂð£¿ËùÒÔÓÐÏÞ¸ösigma´úÊýµÄ²¢ÊÇsigma´úÊýµ«ÊÇ¿ÉÊý¸ösig ...

ÓÐÏÞ¸öÒ²²»¶Ô
5Â¥2014-04-07 20:17:06
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 285»¯¹¤Ñ§Ë¶Çóµ÷¼Á£¨081700£© +11 ²ñ¿¤Ã¨_ 2026-03-12 11/550 2026-03-19 09:37 by laoshidan
[»ù½ðÉêÇë] ¹ú×Ô¿ÆÃæÉÏ»ù½ð×ÖÌå +7 iwuli 2026-03-12 8/400 2026-03-19 08:55 by sjtu2012
[¿¼ÑÐ] 281Çóµ÷¼Á£¨0805£© +6 ÑÌÏ«Ò亣 2026-03-16 16/800 2026-03-19 00:59 by ÑÌÏ«Ò亣
[¿¼ÑÐ] 08¹¤¿Æ 320×Ü·Ö Çóµ÷¼Á +5 À滨çóÍí·ç 2026-03-17 5/250 2026-03-18 14:49 by haxia
[¿¼ÑÐ] 085601ר˶£¬×Ü·Ö342Çóµ÷¼Á£¬µØÇø²»ÏÞ +5 share_joy 2026-03-16 5/250 2026-03-18 14:48 by haxia
[¿¼ÑÐ] 070300»¯Ñ§319Çóµ÷¼Á +6 ½õÀð0909 2026-03-17 6/300 2026-03-18 13:22 by Iveryant
[¿¼ÑÐ] 301Çóµ÷¼Á +9 yyÒªÉϰ¶Ñ½ 2026-03-17 9/450 2026-03-18 08:58 by Î޼ʵIJÝÔ­
[¿¼ÑÐ] 334Çóµ÷¼Á +3 Ö¾´æ¸ßÔ¶ÒâÔÚ»úÐ 2026-03-16 3/150 2026-03-18 08:34 by lm4875102
[¿¼ÑÐ] 290Çóµ÷¼Á +6 ¿×Ö¾ºÆ 2026-03-12 11/550 2026-03-17 14:41 by ÖÜÖÛÖÛ77
[¿¼ÑÐ] 278Çóµ÷¼Á +3 Yy7400 2026-03-13 3/150 2026-03-17 08:24 by laoshidan
[»ù½ðÉêÇë] ½ñÄêµÄ¹ú»ù½ðÊÇ´ò·ÖÖÆÂ𣿠50+3 zhanghaozhu 2026-03-14 3/150 2026-03-16 17:07 by ±±¾©À³ÒðÈóÉ«
[¿¼ÑÐ] 304Çóµ÷¼Á +5 ËØÄê¼ÀÓï 2026-03-15 5/250 2026-03-16 17:00 by ÎҵĴ¬Îҵĺ£
[¿¼ÑÐ] »úеר˶µ÷¼Á +3 ±¿±¿ÍÃ×Ó 2026-03-12 3/150 2026-03-15 20:02 by Àõ×ÓÖà?
[¿¼ÑÐ] 070305Çóµ÷¼Á +3 mlpqaz03 2026-03-14 4/200 2026-03-15 11:04 by peike
[¿¼ÑÐ] 297Ò»Ö¾Ô¸ÉϽ»085600Çóµ÷¼Á +5 Ö¸¼â°ËǧÀï 2026-03-14 5/250 2026-03-14 17:26 by a²»Ò×
[¿¼ÑÐ] 328Çóµ÷¼Á +3 5201314Lsy£¡ 2026-03-13 6/300 2026-03-14 15:31 by hyswxzs
[¿¼ÑÐ] Çó²ÄÁϵ÷¼Á 085600Ó¢Ò»Êý¶þ×Ü·Ö302 ǰÈý¿Æ235 ¾«Í¨»úÆ÷ѧϰ Ò»Ö¾Ô¸¹þ¹¤´ó +4 ÁÖyaxin 2026-03-12 4/200 2026-03-13 22:04 by ÐÇ¿ÕÐÇÔÂ
[¿¼ÑÐ] 085600²ÄÁÏÓ뻯¹¤ 309·ÖÇëÇóµ÷¼Á +7 dtdxzxx 2026-03-12 8/400 2026-03-13 14:43 by jxchenghu
[¿¼ÑÐ] һ־Ըɽ´ó07»¯Ñ§ 332·Ö ËÄÁù¼¶Òѹý ±¾¿ÆÉ½¶«Ë«·Ç Çóµ÷¼Á£¡ +3 ²»ÏëÀíÄã 2026-03-12 3/150 2026-03-13 14:18 by JourneyLucky
[¿¼ÑÐ] 289Çóµ÷¼Á +3 ÀîÕþÓ¨ 2026-03-12 3/150 2026-03-13 11:02 by Çóµ÷¼Ázz
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û