±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 277  |  »Ø¸´: 2
µ±Ç°Ö÷ÌâÒѾ­´æµµ¡£

monitor2885

ÖÁ×ðľ³æ (Ö°Òµ×÷¼Ò)

¶Ó³¤

[½»Á÷] ¡¾ÇóÖú¡¿³£Î¢·Ö·½³Ì×éÓнâÎö½âÂð

ÏÂÃæµÄ³£Î¢·Ö·½³Ì×éÓнâÎö½âÂð£¿ÊDz»ÊÇÖ»ÄÜÓà ode º¯ÊýÇóÊýÖµ½â£¿

dxdt= y*z
dydt= -x*z
dzdt= -0.5*x*y
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

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

xiegangmai

°æÖ÷ (Ö°Òµ×÷¼Ò)

ÎÒûͷÏÎ

ÓÅÐã°æÖ÷ÓÅÐã°æÖ÷ÓÅÐã°æÖ÷

¡ï
nono2009(½ð±Ò+1):¹ÄÀøÓ¦Öú£¡ 2010-03-13 10:24
ÊÔÊÔ£º
[x,y,z]=dsolve('Dx=y*z,Dy=-x*z,Dz=-0.5*x*y')

¿ÉÒÔÇó½â£¬Ã»ÑéÖ¤½á¹û
Ã÷µÂºñѧ¡¢ÇóÊÇ´´ÐÂ
2Â¥2010-03-13 10:07:42
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

monitor2885

ÖÁ×ðľ³æ (Ö°Òµ×÷¼Ò)

¶Ó³¤

nono2009:½¨Òéͨ¹ý¡°ÒýÓûظ´¸ÃÌû¡±»òPM£¬ÒÔ±ã±ðÈ˼°Ê±ÊÕµ½ÄãµÄmessage. 2010-03-14 10:58
²»¶Ôѽ
Retirement
3Â¥2010-03-13 10:33:17
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ monitor2885 µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] Çó²ÄÁϵ÷¼Á£¬Ò»Ö¾Ô¸Ö£ÖÝ´óѧ289·Ö +5 ˶ÐǸ° 2026-04-03 5/250 2026-04-03 07:13 by chran16
[¿¼ÑÐ] Ò»Ö¾Ô¸ÉÂÎ÷ʦ·¶´óѧÉúÎïѧ317·Ö +5 1563ÈÕ¡£ 2026-04-02 5/250 2026-04-03 06:58 by ilovexiaobin
[¿¼ÑÐ] ²ÄÁÏ¿ÆÑ§Ó빤³Ì¿¼ÑÐ +6 Õü¾ÈÆ¤ÌØÍÐÏÈÉú 2026-04-02 6/300 2026-04-02 22:47 by liveagain126
[¿¼²©] É격ÇóÖú +3 Reee1Llll 2026-04-01 3/150 2026-04-02 22:29 by ÕâÊÇÒ»¸öÎÞÁĵÄê
[¿¼ÑÐ] »¯¹¤µ÷¼Á303·Ö£¬¹ýËļ¶ +14 ÆÜÎà´ý·ç 2026-04-02 14/700 2026-04-02 21:58 by ¿ÆÑÐСר¼Ò
[¿¼ÑÐ] 085600£¬320·ÖÇóµ÷¼Á +6 ´ó²öС×Ó 2026-04-02 6/300 2026-04-02 21:54 by dongzh2009
[¿¼ÑÐ] һ־Ըɽ¶«´óѧ£¬085600£¬344 +7 κ×Óper 2026-04-02 8/400 2026-04-02 21:12 by °ÙÁéͯ888
[¿¼ÑÐ] 266·Ö£¬Ò»Ö¾Ô¸µçÆø¹¤³Ì£¬±¾¿Æ²ÄÁÏ£¬Çó²ÄÁÏרҵµ÷¼Á +7 ÍÛºôºßºôºß 2026-04-02 7/350 2026-04-02 20:13 by yulian1987
[¿¼ÑÐ] Ò»Ö¾Ô¸»ª¶«Àí¹¤´óѧ£¬080500ѧ˶£¬317·Ö£¬Çóµ÷¼Á +13 s1145 2026-03-31 14/700 2026-04-02 18:55 by ŶŶàŹþ
[¿¼ÑÐ] Çóµ÷¼ÁÍÆ¼ö +3 ÄÏɽÄÏ@ 2026-04-01 3/150 2026-04-02 12:09 by xiaoranmu
[¿¼ÑÐ] ¸÷λÀÏʦºÃ£¬ÎÒµÄһ־ԸΪ±±¾©¿Æ¼¼´óѧ085601²ÄÁÏר˶ +13 Koxui 2026-03-28 13/650 2026-04-02 09:35 by ßÕßÕßÕßÉßÉßÉ
[¿¼ÑÐ] 085602»¯Ñ§¹¤³Ì268·Ö¶×µ÷¼Á +8 ÔÂÕÕ»¨ÁÖ¡£ 2026-04-01 8/400 2026-04-01 22:08 by Î޼ʵIJÝÔ­
[¿¼ÑÐ] 307·ÖÇóµ÷¼Á +14 (o~o) 2026-03-31 15/750 2026-04-01 20:43 by longlotian
[¿¼ÑÐ] 086000ÉúÎïÓëÒ½Ò©298µ÷¼ÁÇóÖú +4 ÔªÔªÇàÇà 2026-03-31 6/300 2026-04-01 11:13 by syh9288
[¿¼ÑÐ] µ÷¼ÁÉêÇë +8 ÕÅÕÅÕÅÕÅzy 2026-03-31 9/450 2026-04-01 08:29 by zjbkx
[¿¼ÑÐ] 352·Ö-085602-Ò»Ö¾Ô¸985 +6 º£Äɰٴ¨Ly 2026-03-29 6/300 2026-03-31 21:06 by yuq
[¿¼ÑÐ] 0856 335·Ö +9 cccchenso 2026-03-29 9/450 2026-03-31 16:37 by lishahe
[¿¼ÑÐ] 282Çóµ÷¼Á +3 ºôÎü¶¼ÊǼõ·Ê 2026-03-31 3/150 2026-03-31 10:00 by wangjy2002
[¿¼ÑÐ] 283Çóµ÷¼Á +3 A child 2026-03-28 3/150 2026-03-28 15:41 by ms629
[¿¼ÑÐ] 298µ÷¼Á +3 jiyingjie123 2026-03-27 3/150 2026-03-27 11:57 by wxiongid
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û