±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 2773  |  »Ø¸´: 6

yemaosong

[½»Á÷] ¡¾ÇóÖú¡¿Ò»¸ö³£Î¢·Ö·½³ÌµÄͨ½â ÒÑÓÐ5È˲ÎÓë

t^2*x¨•-4tx¨@+6x=36©Rt/t    ,    x1=t^2  ,x2=t^3
Çóͨ½â
¼±ÓÃ!!!!!!!!!

Çóͨ½â
t^2x¨•-3tx¨@+8x=18t^2sin(©Rt).   x1=t^2cos(2©Rt)   ,x2=t^2sin(©Rt)

[ Last edited by javeey on 2010-5-4 at 19:25 ]
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

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

fyq98

ľ³æ (ÕýʽдÊÖ)

¡ï ¡ï ¡ï ¡ï
yemaosong(½ð±Ò+1):лл²ÎÓë
СÓêÃÈÃÈ(½ð±Ò+1):лл½â´ð 2010-05-05 15:45:04
bluesine(½ð±Ò+2):Õâ¸ö¶à½±ÀøÒ»µã£¬1¸öÌ«ÉÙÁË¡£ºÇºÇ 2010-05-06 19:51:57
1.ͨ½âΪ
x(t)=c_1t^2+c_2t^3+[3lnt+1.75]/t
2.ͨ½âΪ
x(t)=c_1t^2cos(2©Rt) +c_2t^2sin(2©Rt)+6t^2sin(©Rt)
ÒÑ´úÈëÔ­·½³ÌÑéËã¡£ÕýÈ·ÎÞÎó£¡
¿ËÄѷܽø
2Â¥2010-05-05 15:34:51
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

scuxchen

½ð³æ (ÖøÃûдÊÖ)

¡ï
yemaosong(½ð±Ò+1):лл²ÎÓë
ÄÜ·ñд³ö¹ý³Ì£¬Ñ§Ï°ÏÂ
È­´ò½ÅÌß
3Â¥2010-05-05 18:59:11
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

fyq98

ľ³æ (ÕýʽдÊÖ)

¡ï ¡ï
javeey(½ð±Ò+2):лл½â´ð£¬»¶Ó­³£»ØÌû½»Á÷ 2010-05-05 23:38:59
ºÇºÇ£¬ÕâÊÇÅ·À­·½³Ì£¬Ó󣹿×ö·¨£¬¼´×ö´ú»»lnt=u,°ÑÔ­·½³Ì»¯ÎªÒÔuΪ×Ô±äÁ¿µÄ·½³Ì£¬Æä½á¹ûÊÇÒ»¸ö³£ÏµÊýÏßÐÔ·ÇÆë´Î·½³Ì£¬Óôý¶¨ÏµÊý·¨¾Í¿É½â³ö¡£
¿ËÄѷܽø
4Â¥2010-05-05 19:37:03
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

luomingqi

ľ³æ (ÕýʽдÊÖ)

¡ï
yemaosong(½ð±Ò+1):лл²ÎÓë
Íõ¸ßÐ۵Ŀα¾¿´¿´µÄ
¸ú×Ù
5Â¥2010-05-05 19:43:55
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

qshjdax

Òø³æ (СÓÐÃûÆø)

¡ï
yemaosong(½ð±Ò+1):лл²ÎÓë
ÓÃmatlabÄâºÏ¾Í¿ÉÒÔ
6Â¥2010-05-06 10:43:09
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

onesupeng

½ð³æ (Ö°Òµ×÷¼Ò)

¡ï
yemaosong(½ð±Ò+1):лл²ÎÓë
wuguocheng:²»´í 2010-05-07 09:05:42
Áît=exp£¨p£©£¬Ôò·½³ÌºÜÈÝÒ×ת»¯Îª
ax''+bx'+cx=f(p)µÄÐÎʽ¡£¶ÔÓÚÄãµÄµÚÒ»Ì⣬¾ÍÊÇ

x''-4x'+6x=36p*exp(-p)

ÔÙÁîy=x*exp(p)£¬¼´¿ÉÓÐ

a1*x''+a2*x'+a3*x=P(p) (¼´PµÄ¶àÏîʽ)£¬ÓÚÊÇÕâ¸ö·½³ÌµÄÌØ½â¾ÍºÜÈÝÒ×ÕÒµ½£¬ÌØÕ÷ÖµÒ²²»ÔÚ»°Ï¡£×ܵľÍÊÇÕâ¸ö˼·
³¤ÆÚÕÐÊÕ²©Ê¿Éú£¬²Î¼ûhttp://fsl-unsw.com
7Â¥2010-05-07 01:37:49
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ yemaosong µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 08¹¤¿Æ£¬295£¬½ÓÊÜ¿çרҵµ÷¼Á +3 lmnlzy 2026-03-31 3/150 2026-03-31 12:36 by ̽123
[¿¼ÑÐ] 289Çóµ÷¼Á +6 BrightLL 2026-03-29 6/300 2026-03-31 11:22 by oooqiao
[¿¼ÑÐ] ²ÄÁÏר˶µ÷¼Á +12 Ò¬Ò¬¡£ 2026-03-29 12/600 2026-03-31 10:52 by foria
[¿¼ÑÐ] ×Ü·Ö322ÇóÉúÎïѧ/Éú»¯Óë·Ö×Ó/ÉúÎïÐÅϢѧÏà¹Øµ÷¼Á +6 ÐdzÁuu 2026-03-26 7/350 2026-03-31 10:19 by GdShizy
[¿¼ÑÐ] 085600²ÄÁÏÓ뻯¹¤329·ÖÇóµ÷¼Á +5 ÕâÊÇÓÐÌ«ÑôÍÛ 2026-03-25 5/250 2026-03-31 09:59 by luoyongfeng
[¿¼ÑÐ] Ò»Ö¾Ô¸Öк£Ñó320»¯Ñ§¹¤³ÌÓë¼¼Êõѧ˶Çóµ÷¼Á +8 ÅûÐÇºÓ 2026-03-30 8/400 2026-03-31 08:53 by lbsjt
[¿¼ÑÐ] 085602»¯¹¤Çóµ÷¼Á£¨331·Ö£© +8 111@127 2026-03-30 8/400 2026-03-30 21:23 by Ñо¿É®µ¼µ¼
[¿¼ÑÐ] Ò»Ö¾Ô¸Äϲý´óѧ324Çóµ÷¼Á +9 hanamiko 2026-03-27 9/450 2026-03-30 20:10 by Î޼ʵIJÝÔ­
[¿¼ÑÐ] 085600 ²ÄÁÏÓ뻯¹¤ 329·ÖÇóµ÷¼Á +18 Mr. Z 2026-03-25 19/950 2026-03-30 19:01 by Wang200018
[¿¼ÑÐ] 296Çóµ÷¼Á +10 ±Ë°¶t 2026-03-29 10/500 2026-03-30 10:50 by ̽123
[¿¼ÑÐ] 295Çóµ÷¼Á +5 wei-5 2026-03-26 5/250 2026-03-30 08:34 by ̽123
[¿¼ÑÐ] µ÷¼Á¿¼ÑÐ +3 Íõ½ÜÒ» 2026-03-29 3/150 2026-03-29 08:09 by fmesaito
[¿¼ÑÐ] 081200-314 +3 LILIQQ 2026-03-27 4/200 2026-03-28 09:41 by ±£»¤µØÇòÄãÎÒ×öÆ
[¿¼ÑÐ] 086502»¯Ñ§¹¤³Ì342Çóµ÷¼Á +6 °¢Ò̸´¹Å²»¹ý 2026-03-27 6/300 2026-03-28 07:06 by wangy0907
[¿¼ÑÐ] Ò»Ö¾Ô¸ÉϺ£Àí¹¤ÄÜÔ´¶¯Á¦£¨085800£©310·ÖÇóµ÷¼Á +3 zhangmingc 2026-03-27 4/200 2026-03-27 19:01 by ¸øÄãÄã×¢ÒâÐÝÏ¢
[¿¼ÑÐ] 081200-11408-276ѧ˶Çóµ÷¼Á +4 ´Þwj 2026-03-26 4/200 2026-03-27 08:04 by chemisry
[¿¼ÑÐ] µ÷¼ÁÇóÊÕÁô +7 ¹ûÈ»ÓÐÎÒ 2026-03-26 7/350 2026-03-27 00:26 by wxiongid
[¿¼ÑÐ] 085601Çóµ÷¼Á×Ü·Ö293Ó¢Ò»Êý¶þ +4 ¸ÖÌú´óÅÚ 2026-03-24 4/200 2026-03-26 16:28 by dick_runner
[¿¼ÑÐ] 303Çóµ÷¼Á +6 À¶É½Ô 2026-03-25 6/300 2026-03-25 22:47 by 418490947
[¿¼ÑÐ] ÇóbÇøÔºÐ£µ÷¼Á +4 ÖÜ56 2026-03-24 5/250 2026-03-25 17:12 by yishunmin
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û