²é¿´: 1869  |  »Ø¸´: 3
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

shy1992331

гæ (СÓÐÃûÆø)

[½»Á÷] ÒÀ¸ÅÂÊÊÕÁ²µÄÎÊÌâ ÒÑÓÐ1È˲ÎÓë

Xn£¬n¡Ý1ÊÇÒ»¸ö¶ÀÁ¢Í¬·Ö²¼ÐòÁУ¬¼ÙÉè¾ùֵΪ0£¬·½²îÓÐÏÞ£¬ÊÔÈ·¶¨aµÄֵʹµÃSn/(n^a)ÒÀ¸ÅÂÊÊÕÁ²£¬SnÊÇǰnÏîµÄºÍ

[ ·¢×ÔÊÖ»ú°æ http://muchong.com/3g ]
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

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

shy1992331

гæ (СÓÐÃûÆø)

ÒýÓûØÌû:
2Â¥: Originally posted by jabile at 2013-11-16 19:17:33
D(S^n/n^a)=n^{1-2a} DX
a<{1\over 2}£¬Ç÷ÏòÓÚÎÞÇ²»ÊÕÁ²
a>{1\over 2}£¬Ç÷ÏòÓÚ0£¬ÓÉÇбÈÑ©·ò²»µÈʽ£¬ÊÕÁ²
a={1\over 2}£¬½Ï¸´ÔÓ£¬Ò²²»ÊÕÁ²

¶ÔÓڽϸ´ÔÓµÄÇé¿ö´ó¸ÅÊǸöʲô˼·ȥ֤Ã÷°¡£¿
3Â¥2013-11-18 22:59:46
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 4 ¸ö»Ø´ð

jabile

ľ³æ (ÕýʽдÊÖ)

¡ï
Сľ³æ: ½ð±Ò+0.5, ¸ø¸öºì°ü£¬Ð»Ð»»ØÌû
D(S^n/n^a)=n^{1-2a} DX
a<{1\over 2}£¬Ç÷ÏòÓÚÎÞÇ²»ÊÕÁ²
a>{1\over 2}£¬Ç÷ÏòÓÚ0£¬ÓÉÇбÈÑ©·ò²»µÈʽ£¬ÊÕÁ²
a={1\over 2}£¬½Ï¸´ÔÓ£¬Ò²²»ÊÕÁ²
2Â¥2013-11-16 19:17:33
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

jabile

ľ³æ (ÕýʽдÊÖ)

¡ï
Сľ³æ: ½ð±Ò+0.5, ¸ø¸öºì°ü£¬Ð»Ð»»ØÌû
ÒýÓûØÌû:
3Â¥: Originally posted by shy1992331 at 2013-11-18 22:59:46
¶ÔÓڽϸ´ÔÓµÄÇé¿ö´ó¸ÅÊǸöʲô˼·ȥ֤Ã÷°¡£¿...

¸ù¾Ý¶¨Ò壬ֱ½Ó¿¼ÂǸÅÂÊP(|X_n/\sqrt{n}-X_m/\sqrt{m}|>\epsilon)
±ÈÈçÈ¡m=2n,n\rightarrow \infty
4Â¥2013-11-19 10:56:09
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 323Çóµ÷¼Á +6 ÍÝСͰ 2026-03-18 6/300 2026-03-23 00:29 by king123£¡
[¿¼ÑÐ] ÉúÎïѧ071000 329·ÖÇóµ÷¼Á +5 ÎÒ°®ÉúÎïÉúÎﰮΠ2026-03-17 5/250 2026-03-22 16:42 by tcx007
[¿¼ÑÐ] ѰÕÒµ÷¼Á +4 ¾óǿâ? 2026-03-21 4/200 2026-03-22 16:14 by ľÍÐζ¶
[¿¼ÑÐ] 298Çóµ÷¼ÁÒ»Ö¾Ô¸211 +3 Éϰ¶6666@ 2026-03-20 3/150 2026-03-22 15:50 by ColorlessPI
[¿¼ÑÐ] 275Çóµ÷¼Á +6 shansx 2026-03-22 8/400 2026-03-22 15:27 by barlinike
[¿¼ÑÐ] ÄÜÔ´²ÄÁÏ»¯Ñ§¿ÎÌâ×éÕÐÊÕ˶ʿÑо¿Éú8-10Ãû +5 ÍÑÓ±¶ø³ö 2026-03-16 17/850 2026-03-22 15:18 by ÍÑÓ±¶ø³ö
[¿¼ÑÐ] 354Çóµ÷¼Á +7 Tyoumou 2026-03-18 10/500 2026-03-22 11:11 by ÈËÀ´Ê¢
[¿¼ÑÐ] 333Çóµ÷¼Á +5 87639 2026-03-21 7/350 2026-03-21 19:31 by ColorlessPI
[¿¼ÑÐ] Çóµ÷¼Á +4 ÒªºÃºÃÎÞÁÄ 2026-03-21 4/200 2026-03-21 18:57 by ѧԱ8dgXkO
[¿¼ÑÐ] 0703»¯Ñ§297Çóµ÷¼Á +3 Daisy¡î 2026-03-20 3/150 2026-03-21 17:45 by ColorlessPI
[¿¼ÑÐ] 306Çó0703µ÷¼ÁÒ»Ö¾Ô¸»ªÖÐʦ·¶ +5 Ö½Óãly 2026-03-21 5/250 2026-03-21 17:11 by ѧԱ8dgXkO
[¿¼ÑÐ] Çóµ÷¼Á +3 °×QF 2026-03-21 3/150 2026-03-21 13:12 by zhukairuo
[¿¼ÑÐ] »úеר˶299Çóµ÷¼ÁÖÁ²ÄÁÏ +3 kkcoco25 2026-03-16 4/200 2026-03-21 03:52 by JourneyLucky
[¿¼ÑÐ] 307Çóµ÷¼Á +3 wyyyqx 2026-03-17 3/150 2026-03-21 03:20 by JourneyLucky
[¿¼ÑÐ] Ò»Ö¾Ô¸»ªÄÏʦ´ó 070300£¨»¯Ñ§£©304·ÖÇóµ÷¼Á +3 0703ÎäÜ·»ÛÑ©304 2026-03-18 3/150 2026-03-21 00:48 by JourneyLucky
[¿¼ÑÐ] ²ÄÁÏר˶ӢһÊý¶þ306 +7 z1z2z3879 2026-03-18 7/350 2026-03-20 23:48 by JourneyLucky
[¿¼ÑÐ] Ò»Ö¾Ô¸Î人Àí¹¤²ÄÁϹ¤³Ìר˶µ÷¼Á +9 Doleres 2026-03-19 9/450 2026-03-20 22:36 by JourneyLucky
[¿¼ÑÐ] 295¸´ÊÔµ÷¼Á +8 ¼òľChuFront 2026-03-19 8/400 2026-03-20 20:44 by zhukairuo
[¿¼ÑÐ] ²ÄÁÏѧÇóµ÷¼Á +4 Stella_Yao 2026-03-20 4/200 2026-03-20 20:28 by ms629
[¿¼ÑÐ] Ò»Ö¾Ô¸ÄϾ©´óѧ£¬080500²ÄÁÏ¿ÆÑ§Ó빤³Ì£¬µ÷¼Á +4 Jy? 2026-03-16 4/200 2026-03-17 11:02 by gaoqiong
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û