±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 757  |  »Ø¸´: 3

awakening_

Í­³æ (³õÈëÎÄ̳)

[ÇóÖú] Çó¾È Ò»¸ö»ý·ÖÎÊÌâ

dx/dy=e^y - x
Õâ¸öʽ×ÓÈçºÎÇó»ý·ÖÈ»ºóµÃµ½x¡¢yµÄ¹ØÏµ°¡£¿
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

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

feixiaolin

ÈÙÓþ°æÖ÷ (ÎÄ̳¾«Ó¢)

ÓÅÐã°æÖ÷

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
dx=d[exp(y)-xy]
×îºó£¬
exp(y)-xy-x=Const.
2Â¥2013-10-17 07:13:02
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

feixiaolin

ÈÙÓþ°æÖ÷ (ÎÄ̳¾«Ó¢)

ÓÅÐã°æÖ÷

2Â¥ ÐÞÕý
ԭʽ¼´Îª£ºdx/dy+x=exp(y);
ÌØÕ÷¸ù r=-1, x=C*exp(-y);
ÌØ½â£º x=0.5*exp(y);
È«½â  x=C*exp(-y) +0.5*exp(y).
end.
3Â¥2013-10-17 08:21:38
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

awakening_

Í­³æ (³õÈëÎÄ̳)

ÒýÓûØÌû:
3Â¥: Originally posted by feixiaolin at 2013-10-17 08:21:38
2Â¥ ÐÞÕý
ԭʽ¼´Îª£ºdx/dy+x=exp(y);
ÌØÕ÷¸ù r=-1, x=C*exp(-y);
ÌØ½â£º x=0.5*exp(y);
È«½â  x=C*exp(-y) +0.5*exp(y).
end.

Ê®·Ö¸Ðл
4Â¥2013-10-17 10:00:57
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ awakening_ µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 294Çóµ÷¼Á +4 Grey_Ey 2026-04-01 5/250 2026-04-05 23:05 by Grey_Ey
[¿¼ÑÐ] 308Çóµ÷¼Á +3 ÖÕ²»ËÆ´Óǰ 2026-04-05 3/150 2026-04-05 22:23 by hemengdong
[¿¼ÑÐ] 348Çóµ÷¼Á +3 ³µÀå×Ózzz 2026-04-05 3/150 2026-04-05 20:30 by à£à£à£0119
[¿¼ÑÐ] 280Çóµ÷¼Á +4 Àîrien 2026-04-04 4/200 2026-04-05 18:44 by imissbao
[¿¼ÑÐ] 0832ʳƷ¿ÆÑ§Ó빤³Ìѧ˶282µ÷¼Á +6 ÓãÔÚË®ÖÐÓÎa 2026-04-02 9/450 2026-04-05 11:45 by flysky1234
[¿¼ÑÐ] µ÷¼Á +11 JLLLLLLLLLL 2026-04-03 11/550 2026-04-04 22:21 by hemengdong
[¿¼ÑÐ] 297Çóµ÷¼Á +11 ljy20040718£¡ 2026-04-03 13/650 2026-04-04 09:23 by À´¿´Á÷ÐÇÓê10
[¿¼ÑÐ] 085601Ò»Ö¾Ô¸±±Àí325·ÖÇóµ÷¼Á +6 ÕÒµ÷¼Á£¬£¬ 2026-04-02 6/300 2026-04-03 22:20 by –¹Æ?
[¿¼ÑÐ] ¿¼ÑÐÇóµ÷¼Á +3 ľÐÄÏë¼ÌÐøÉîÔì 2026-04-03 3/150 2026-04-03 21:56 by à£à£à£0119
[¿¼ÑÐ] Çóµ÷¼Á»ú»á +5 ÒâȾivy 2026-04-03 5/250 2026-04-03 15:13 by qoooooo614
[¿¼ÑÐ] »úеר˶297 +3 Afksy 2026-04-03 3/150 2026-04-03 14:24 by 1753564080
[¿¼ÑÐ] 289-Çóµ÷¼Á +4 ÕâÀïÊÇ_ 2026-04-03 4/200 2026-04-03 14:23 by 1753564080
[¿¼ÑÐ] ר˶ 351 086100 Ò²ÊÇ¿¼µÄ²Ä¿Æ»ù ±¾¿ÆÒ²ÊDzÄÁÏ +8 202451007219 2026-04-02 8/400 2026-04-03 09:50 by À¶ÔÆË¼Óê
[¿¼ÑÐ] 302Çóµ÷¼Á +9 zyxÉϰ¶£¡ 2026-04-02 9/450 2026-04-02 23:07 by Âí¶ù¿ì¿ìµØÅÜ
[¿¼ÑÐ] 085602»¯¹¤Çóµ÷¼Á£¨331·Ö£© +9 111@127 2026-03-30 9/450 2026-04-02 20:00 by dick_runner
[¿¼ÑÐ] 266·Ö£¬Ò»Ö¾Ô¸µçÆø¹¤³Ì£¬±¾¿Æ²ÄÁÏ£¬Çó²ÄÁÏרҵµ÷¼Á +10 ÍÛºôºßºôºß 2026-04-01 11/550 2026-04-02 11:31 by lnilvy
[¿¼ÑÐ] 372Çóµ÷¼Á +3 jjÓ¿77 2026-04-02 3/150 2026-04-02 09:57 by olim
[¿¼ÑÐ] ÍÁľ304Çóµ÷¼Á +6 ÍÃͻͻͻ£¬ 2026-03-31 7/350 2026-04-02 09:06 by coolminer
[¿¼ÑÐ] Çó0861½»Í¨ÔËÊäר˶or²ÄÁÏר˶µ÷¼Á +4 ÀÕ²¼ÀÊ@ 2026-03-31 4/200 2026-04-01 09:54 by Ò»Ö»ºÃ¹û×Ó?
[¿¼ÑÐ] 085404 22408 315·Ö +5 zhuangyan123 2026-03-31 6/300 2026-03-31 13:48 by limeifeng
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û