Znn3bq.jpeg
ÉÇÍ·´óѧº£Ñó¿ÆÑ§½ÓÊܵ÷¼Á
²é¿´: 2911  |  »Ø¸´: 11
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

SETSUNALI

Ìú¸Ëľ³æ (ÖøÃûдÊÖ)

[ÇóÖú] ´óѧÎïÀí£¬¾²µçѧÖе͍»ý·ÖÎÊÌ⣡Çó¸ßÈËÖ¸µã£¡

ÕâµÀÌâ¸ÃÈçºÎ»ý·Ö£¿ÎÒ»ý·Ö²»³öÀ´£¡Çó¸ßÈË£¡
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

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

smy1982

ľ³æ (ÕýʽдÊÖ)

¶à´Î·Ö²¿»ý·Ö£¬ÊµÔÚ²»Ðвé»ý·Ö±í
Èç¹ûÄãÔø¸èËÌÀèÃ÷£¬ÄÇôҲÇëÄãÓµ±§ºÚÒ¹¡£
9Â¥2012-03-03 18:33:05
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 12 ¸ö»Ø´ð

yuuwang

ľ³æ (СÓÐÃûÆø)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
ÄãµÄÐüÉÍҲ̫ÉÙÁ˵ã°É£¬Æäʵ²¢²»ÄÑ£¬°´¶¨Òå¾Í¿ÉÒÔËã³öÀ´
3Â¥2012-02-29 16:15:47
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

yulingfei225

Òø³æ (³õÈëÎÄ̳)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
Ó÷ֲ¿»ý·Ö·¨£º\int ^r_0 r^2e^{-r/b}dr=r^2e^{-r/b}|^r_0-\int ^r_0 2r e^{-r/b}dr
4Â¥2012-02-29 16:37:51
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

SETSUNALI

Ìú¸Ëľ³æ (ÖøÃûдÊÖ)

ÒýÓûØÌû:
Â¥: Originally posted by yulingfei225 at 2012-02-29 16:37:51:
Ó÷ֲ¿»ý·Ö·¨£º\int ^r_0 r^2e^{-r/b}dr=r^2e^{-r/b}|^r_0-\int ^r_0 2r e^{-r/b}dr

Êǰ¡£¬ÊÇ·Ö²¿»ý·Ö£¬Á½´Î£¬ÎÒËã³öÀ´ÁË£¬Ð»Ð»Äã
5Â¥2012-02-29 18:01:36
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] Çóµ÷¼ÁÍÆ¼ö +4 СÄô°®Ñ§Ï° 2026-04-14 4/200 2026-04-14 20:54 by fqwang
[¿¼ÑÐ] 291 Çóµ÷¼Á +36 »¯¹¤2026½ì±ÏÒµÉ 2026-04-09 37/1850 2026-04-14 17:56 by lhj2009
[¿¼ÑÐ] ²ÄÁÏÏà¹Ø×¨Òµ344Çóµ÷¼ÁË«·Ç¹¤¿ÆÑ§Ð£»ò¿ÎÌâ×é +21 hualkop 2026-04-12 22/1100 2026-04-14 17:44 by lhj2009
[¿¼ÑÐ] 290Çóµ÷¼Á +21 luoziheng 2026-04-10 23/1150 2026-04-14 15:49 by zs92450
[¿¼ÑÐ] µ÷¼Á +12 ÔÂ@163.com 2026-04-11 12/600 2026-04-14 15:37 by zs92450
[¿¼ÑÐ] 085801µçÆø×¨Ë¶272Çóµ÷¼Á +14 µçÆøÀî 2026-04-13 15/750 2026-04-14 14:58 by ÄæË®³Ë·ç
[¿¼ÑÐ] 297Çóµ÷¼Á +23 ORCHID1 2026-04-10 26/1300 2026-04-14 13:52 by ³ÂƤƤ
[¿¼ÑÐ] 085600²ÄÁÏÓ뻯¹¤349·ÖÇóµ÷¼Á +16 Àîľ×Ó°¡¹þ¹þ 2026-04-12 17/850 2026-04-14 09:11 by fenglj492
[¿¼ÑÐ] ²ÄÁÏ085601µ÷¼Á +32 ºÎÈó²É123 2026-04-10 34/1700 2026-04-14 08:47 by ľľmumu¡«
[¿¼ÑÐ] Ò»Ö¾Ô¸211 0703»¯Ñ§ 346·ÖÇóµ÷¼Á +26 ÍÁ¶¹er? 2026-04-09 29/1450 2026-04-13 15:15 by ¶À×íÃι³Ç
[¿¼ÑÐ] µçÆø×¨Ë¶320Çóµ÷¼Á +6 СÂé×Ó111 2026-04-10 6/300 2026-04-12 10:54 by lemon6009
[¿¼ÑÐ] ²ÄÁÏÓ뻯¹¤300Çóµ÷¼Á +39 Ф¿ªÎÄ 2026-04-09 43/2150 2026-04-12 01:30 by Çï¶¹²ËÑ¿
[¿¼ÑÐ] µ÷¼Á +10 Ö»ÐðÀë±ð´Ç 2026-04-09 12/600 2026-04-11 20:57 by ÄæË®³Ë·ç
[¿¼ÑÐ] 283Çóµ÷¼Á£¬¹¤¿Æ£¡ +12 ËÕ´òË®7777 2026-04-08 12/600 2026-04-11 10:28 by ÄæË®³Ë·ç
[¿¼ÑÐ] 297Çóµ÷¼Á +9 Kwgyz 2026-04-09 9/450 2026-04-11 10:09 by zhq0425
[¿¼ÑÐ] Ò»Ö¾Ô¸»ª¶«Ê¦·¶ÉúÎïѧ326·Ö£¬Çóµ÷¼Á +8 Áõīī 2026-04-09 8/400 2026-04-10 12:00 by pengliang8036
[¿¼ÑÐ] ²ÄÁÏר˶³õÊÔ·Ö332Ò»Ö¾Ô¸Î÷±±¹¤Òµ´óѧ£¬ +12 ¹ÊÈË?? 2026-04-09 12/600 2026-04-09 18:34 by Ccclqqq
[¿¼ÑÐ] ¸´ÊÔµ÷¼Á£¬Ò»Ö¾Ô¸Ö£ÖÝ´óѧ²ÄÁÏÓ뻯¹¤289·Ö +31 ˶ÐǸ° 2026-04-08 31/1550 2026-04-09 16:54 by Delta2012
[¿¼ÑÐ] ÉúÎïѧѧ˶£¬³õÊÔ351·Ö£¬Çóµ÷¼Á +4 ¡­¡«¡¢Íõ¡­¡« 2026-04-08 5/250 2026-04-08 21:49 by limeifeng
[¿¼ÑÐ] 263·ÖBÇøÇóµ÷¼Á +6 Àînihao 2026-04-08 6/300 2026-04-08 09:38 by ÄÏ¿ªÐ¡ôë
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û