±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 1238  |  »Ø¸´: 5

09cj513

ľ³æ (ÖøÃûдÊÖ)


[½»Á÷] ¡¾ÇóÖú¡¿Ò»¸ö¶þ½×Æ«µ¹·½³Ì±ä»»³É΢·Ö·½³Ì£¬¿´²»¶®£¬Çó¸ßÊÖÖ¸µã

¹«Ê½±ä»»ÈçÏ£¬Çë¸ßÊÖ½âÊÍһϣ¬£¨ºÃ¾ÃûѧÊýѧÁË£¬ÎÒʵÔÚ¿´²»¶®£©


»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

» ÇÀ½ð±ÒÀ²£¡»ØÌû¾Í¿ÉÒԵõ½:

²é¿´È«²¿É¢½ðÌù

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

songhuali

ľ³æ (ÕýʽдÊÖ)


09cj513(½ð±Ò+3):ÖªÎÞ²»ÑÔ£¬ÑÔ±ØÑÔ¾¡¡£ËµµÄÍêÕûЩÂï 2011-01-10 08:46:22
ûÓÐÄÄÀï²»Í×°¡£¿ÓÉ΢·Ö¶¨ÒåÓÐdx^2=(dx)^2£¬ÒÔÉÏÊÇÏÔÈ»µÄ
:dnd::dnd::dnd:
2Â¥2011-01-06 21:56:22
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

jfili

½ð³æ (ÕýʽдÊÖ)


09cj513(½ð±Ò+7):ÐÁ¿àÁË£¬¶àлÐֵܣ¡ 2011-01-10 08:52:11
ÒòΪ
\partial^2/\partail x^2+2\partial^2/\partial x\partial y-3\partial^2/\partial y^2
=(\partial/\partial x-\partial/\partial y)(\partial/\partial x+3\partial/\partial y)
ËùÒÔÆ«·½³Ì¿ÉÒÔ»¯Îª³£Î¢·Ö·½³Ì
Ö»ÐèÁî t=y+x, s=y-3x£¬¿ÉµÃ u_{st}=0

ÄãµÄµÚ¶þʽÊÇÇótÓësµÄ±í´ïʽµÄ·½·¨¡£²»¹ýÄãд´íÁË£¬µÚ¶þÏîǰµÄϵÊýÓ¦¸ÃÊÇ2¡£

»òÕßÄãÀí½â³É£¬ÕÒ×ø±ê±ä»» x=f(t,s), y=g(t,s)£¬Ê¹·½³Ì±ä»»Îªu_{ts}=0.
3Â¥2011-01-07 10:08:05
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

wlswlslws

Òø³æ (СÓÐÃûÆø)


¡ï
Сľ³æ(½ð±Ò+0.5):¸ø¸öºì°ü£¬Ð»Ð»»ØÌû½»Á÷
ÌØÕ÷·½³Ì¶øÒÓ£¬Æ«Î¢¿Î±¾É϶¼ÓÐ
4Â¥2011-01-11 14:03:16
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

¿ªÐÄÓñ±¦±´

½ð³æ (ÕýʽдÊÖ)


¡ï
Сľ³æ: ½ð±Ò+0.5, ¸ø¸öºì°ü£¬Ð»Ð»»ØÌû
ÔÚÊý¶þÉ϶¼ÓУ¬UÊÇX,YµÄº¯Êý£¬Äã¿´¿´¿Î±¾ºÜ¼òµ¥µÄ¡£¡£
5Â¥2012-04-30 12:26:33
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

laosam280

½û³æ (ÕýʽдÊÖ)

¡ï
Сľ³æ: ½ð±Ò+0.5, ¸ø¸öºì°ü£¬Ð»Ð»»ØÌû
±¾ÌûÄÚÈݱ»ÆÁ±Î

6Â¥2012-04-30 23:30:23
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ 09cj513 µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] ²ÄÁÏר˶(0856) 339·ÖÇóµ÷¼Á +9 ¹þ¹þ¹þ¶ì¹þ¹þ¹þ 2026-04-05 9/450 2026-04-05 22:24 by dongzh2009
[¿¼ÑÐ] 331Çóµ÷¼Á +5 ÓÚÕ÷yz 2026-04-05 5/250 2026-04-05 21:36 by ×íÎÌwl
[¿¼ÑÐ] 277Çóµ÷¼Á +6 Æ¿×ÓPZ 2026-04-05 6/300 2026-04-05 20:38 by à£à£à£0119
[¿¼ÑÐ] 22408 ×Ü·Ö320£¬Ò»ÆªÂÛÎĶþ×÷£¬Á½¸ö¹úÈý£¬Çóµ÷¼Á +3 Leomulufu 2026-04-04 5/250 2026-04-05 19:04 by chongya
[¿¼ÑÐ] 283·ÖÇóµ÷¼Á +9 ÊÔÊÔ¿´ß 2026-04-04 9/450 2026-04-05 10:27 by ¹û¶³´óÍõ
[¿¼ÑÐ] 0854Çóµ÷¼Á +4 assdll 2026-04-03 4/200 2026-04-04 22:17 by hemengdong
[¿¼ÑÐ] Çóµ÷¼Á +3 ffyyu 2026-04-02 3/150 2026-04-04 19:03 by À¶ÔÆË¼Óê
[¿¼ÑÐ] 272Çóµ÷¼Á +4 Ëɰس£Çà5 2026-04-03 4/200 2026-04-04 17:03 by babysonlkd
[¿¼ÑÐ] Çóµ÷¼Á£º085600²ÄÁÏÓ뻯¹¤£¬¿¼²Ä¿Æ»ù£¬×Ü·Ö319 +21 678lucky 2026-03-31 26/1300 2026-04-04 16:22 by dongzh2009
[¿¼ÑÐ] Çóµ÷¼Á£¬Ò»Ö¾Ô¸±±¾©ÖÐÒ½Ò©´óѧ +3 СС´ï²»Áï 2026-04-02 3/150 2026-04-03 22:55 by ³åʸêÄÐÇÍÅ
[¿¼ÑÐ] 085600ר˶²ÄÁÏÓ뻯¹¤348·ÖÇóµ÷¼Á +10 ÉÏѧÀ²£¡ 2026-04-01 11/550 2026-04-03 14:13 by °ÙÁéͯ888
[˶²©¼ÒÔ°] ÇóÀÏʦÊÕÁô +9 lllq123 2026-04-03 9/450 2026-04-03 13:48 by ºôÎü¶¼ÊǼõ·Ê
[¿¼ÑÐ] 312Çóµ÷¼Á +4 ÉÞÔÂÉ« 2026-04-02 5/250 2026-04-03 08:21 by fangshan711
[¿¼ÑÐ] 362Çóµ÷¼Á +14 Î÷ÄϽ»²ÄÁÏר˶3 2026-03-31 14/700 2026-04-02 17:50 by yunlongyang
[¿¼ÑÐ] 285Çóµ÷¼Á +14 AZMK 2026-04-02 14/700 2026-04-02 15:54 by ÉϾÅÌìÀ¿Ô£¨ºÃÔ
[¿¼ÑÐ] 275ѧ˶081000·þ´Óµ÷¼Áµ½ÆäËûרҵ£¬±£²»×¡±¾×¨ÒµÁË +7 һֻССˮţ 2026-04-02 8/400 2026-04-02 14:23 by alice-2022
[¿¼ÑÐ] 0856³õÊÔ324·ÖÇóµ÷¼Á +6 ÏëÉÏѧÇóµ÷ 2026-04-01 6/300 2026-04-02 11:42 by ÐÇ¿ÕÐÇÔÂ
[¿¼ÑÐ] Ò»Ö¾Ô¸±±½»´ó²ÄÁϹ¤³Ì×Ü·Ö358 +8 cs0106 2026-04-01 9/450 2026-04-02 10:36 by ²»³Ôô~µÄ؈
[¿¼ÑÐ] ²ÄÁϵ÷¼Á +12 Ò»ÑùYWY 2026-04-01 12/600 2026-04-02 00:21 by °ÙÃë¹âÄê
[¿¼ÑÐ] Ò»Ö¾Ô¸±±½»²ÄÁϹ¤³Ì×Ü·Ö358 +5 cs0106 2026-04-01 7/350 2026-04-01 11:45 by wangjy2002
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û