24СʱÈÈÃŰæ¿éÅÅÐаñ    

Znn3bq.jpeg
²é¿´: 437  |  »Ø¸´: 3
µ±Ç°Ö÷ÌâÒѾ­´æµµ¡£
¡¾ÐüÉͽð±Ò¡¿»Ø´ð±¾ÌûÎÊÌ⣬×÷Õßcoolcj½«ÔùËÍÄú 5 ¸ö½ð±Ò
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

coolcj

½ð³æ (ÕýʽдÊÖ)

[ÇóÖú] ¡¾³·»ØÇóÖú¡¿ÒÑÖªµãºÍÒÑÖªÏßÖ®¼äµÄÆ«²îÔõô¼ÆËãµÄ£¿

ÒÑÖªÏß±ÈÈçy=ax^2+bx+c£¬ÕâÊÇÒ»ÌõÀíÂÛÇúÏߣ¬
ʵÑéµã£¨1£¬1£©¡¢£¨1£¬3£©¡¢£¨2£¬5£©µÈ£¬
ÎÒÏë¼ÆËãÒ»ÏÂÕâЩµãÏà¶ÔÓÚÀíÂÛÇúÏߵķûºÏ³Ì¶È¡£
¸ÃÓÃʲô¹«Ê½¼ÆËãÄØ£¿£¿




°æÖ÷¿ÉÒÔ²Ù×÷ÁË

[ Last edited by coolcj on 2008-5-26 at 13:09 ]

» ²ÂÄãϲ»¶

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

dnangelhj

Ìú¸Ëľ³æ (ÖøÃûдÊÖ)

¡ï
coolcj(½ð±Ò+1,VIP+0): »Ø´ð¾ÍÓÖ½ð±ÒÄÃ
¿´¿´¸ßÊýµÄÊéºÃÁË£¬¿Ï¶¨Óеģ¬
4Â¥2008-04-28 23:32:38
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 4 ¸ö»Ø´ð

×¼²©Ê¿

½ð³æ (ÕýʽдÊÖ)

¡ï
coolcj(½ð±Ò+1,VIP+0):лл£¬¿ÉÊÇ´ð°¸Ç·Í×
Ã²ËÆÕâ¸öÑо¿ÉúµÄ¿Î³Ì-¡¶¹¤³ÌÊýѧ¡·ÀïÓй«Ê½,µ«ÊǼDz»ÇåÊÇÄĸö¹«Ê½ÁË.¼ÆËãÎó²îµÄÄǸö£¬×îС¶þ³Ë·¨£¿Maybe or not¡£
2Â¥2008-04-28 20:26:39
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

nucleus01

ÖÁ×ðľ³æ (ÖøÃûдÊÖ)

Сľ³æ±±Í¥½Ú¶Èʹ

¡ï ¡ï ¡ï
coolcj(½ð±Ò+3,VIP+0):ºÜÏêϸ£¬²»¹ýÕâÊÇÄâºÏÓõİɣ¬ÎҵIJ»ÊÇÄâºÏÇúÏß°¡
Ò»°ãÓÃÏà¹ØÏµÊý¼ìÑé·¨¼ìÑé¡£Ïà¹ØÏµÊýÔ½½Ó½ü1,·ûºÏ³Ì¶ÈÔ½ºÃ¡£
Ïà¹ØÏµÊýR= lxy/sqrt(lxx*lyy)
lxx= sum(xi-xƽ¾ù£©^2
lyy=sum(yi-y(mean))^2
lxy=sum(xi-x(mean))(yi-y(mean))
ˬÊÇÒª¸¶³ö´ú¼ÛµÄ!
3Â¥2008-04-28 23:12:45
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²»Ó¦Öú È·¶¨»ØÌûÓ¦Öú (×¢Ò⣺ӦÖú²Å¿ÉÄܱ»½±Àø£¬µ«²»ÔÊÐí¹àË®£¬±ØÐëÌîд15¸ö×Ö·ûÒÔÉÏ)
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] »¯Ñ§070300 Çóµ÷¼Á +17 ¹þ¹þ¹þ^_^ 2026-04-12 17/850 2026-04-13 08:59 by ×ÏêØ×ÏÆå
[¿¼ÑÐ] 339Çóµ÷¼Á +3 hanwudada 2026-04-12 3/150 2026-04-12 21:43 by lbsjt
[¿¼ÑÐ] Çóµ÷¼Á +16 ÕÅ·¬ÇѲ»³´µ° 2026-04-10 17/850 2026-04-12 13:58 by °¾Ò¹³É£¡
[¿¼ÑÐ] µ÷¼Á +25 ²»·ê´º 2026-04-07 26/1300 2026-04-12 11:53 by ´óÁ¦Ë®ÊÖÁ¦´óÎÞÇ
[¿¼ÑÐ] 280Çóµ÷¼Á +7 ÙâÙâÒ¹Ò¹ 2026-04-09 10/500 2026-04-12 00:33 by À¶ÔÆË¼Óê
[¿¼ÑÐ] 22ר˶Çóµ÷¼Á +6 haoyunÉϰ¶ 2026-04-11 8/400 2026-04-11 23:21 by labixiaoqiao
[¿¼ÑÐ] 290Çóµ÷¼Á +13 luoziheng 2026-04-10 13/650 2026-04-11 23:15 by labixiaoqiao
[¿¼ÑÐ] 331Çóµ÷¼Á +5 Íõ¹ú˧ 2026-04-11 5/250 2026-04-11 22:56 by Ϫ½§Á÷Ë®
[½Ìʦ֮¼Ò] ÇëÎʵØÀí¡¢Ò£¸Ð·½Ã棬¿ÉÒÔ×öÄÄЩºáÏòÏîÄ¿°¡£¬×ÝÏòÍê²»³É¿¼ºË°¡ +3 ½õÒÂÎÀº®Õ½ 2026-04-07 5/250 2026-04-11 20:51 by Ô¥½·
[¿¼ÑÐ] 284Çóµ÷¼Á +11 archer.. 2026-04-09 12/600 2026-04-11 20:23 by À¶ÔÆË¼Óê
[¿¼ÑÐ] 337Çóµ÷¼Á +4 ÑÐs. 2026-04-10 4/200 2026-04-11 08:57 by zhq0425
[¿¼ÑÐ] Ò»Ö¾Ô¸»ªÄÏÀí¹¤´óѧ331·Ö²ÄÁÏÇóµ÷¼Á +9 ÌìÏÂww 2026-04-09 9/450 2026-04-10 22:58 by Ftglcn90
[¿¼ÑÐ] 289 ·Ö105500ҩѧר˶Çóµ÷¼Á(ÕÒBÇøÑ§Ð£) +6 °×ÔÆ123456789 2026-04-09 8/400 2026-04-10 21:13 by zhouxiaoyu
[¿¼ÑÐ] 265Çóµ÷¼Á +12 ·ç˵ËýÔçÍüÁË 2026-04-10 13/650 2026-04-10 18:56 by chemisry
[¿¼ÑÐ] 293µ÷¼Á +25 yj1221 2026-04-08 26/1300 2026-04-10 15:02 by ²ñС°×
[¿¼ÑÐ] 1U¶Ü¼ÇµÃ¼ÇµÃ¾Í +9 sanjin020722 2026-04-08 10/500 2026-04-09 14:11 by Ê«Óë×ÔÓÉ
[¿¼ÑÐ] ÉúÎïѧѧ˶£¬³õÊÔ351·Ö£¬Çóµ÷¼Á +4 ¡­¡«¡¢Íõ¡­¡« 2026-04-08 5/250 2026-04-08 21:49 by limeifeng
[¿¼ÑÐ] ²ÄÁÏ¿ÆÑ§Ó빤³Ì320Çóµ÷¼Á£¬080500 +12 »Æ¹ÏζÊíÆ¬ 2026-04-06 12/600 2026-04-08 16:26 by luoyongfeng
[¿¼ÑÐ] 325 µ÷¼Á +6 QQСϺ 2026-04-07 6/300 2026-04-07 15:17 by Ccclqqq
[¿¼ÑÐ] 307Çóµ÷¼Á +3 ËùÄî¼°ËùÍû 2026-04-06 3/150 2026-04-06 17:30 by ÍÁľ˶ʿÕÐÉú
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û