Re: [理工] [工數]-ODE
※ 引述《JaLunPa (呷懶趴)》之銘言:
: (3x^3-xy^2-2y+4)dx-(x^2y+2x)dy=o
: 一階一次ODE
: 合併到後面會停住
: 有請各位~
3 2 2
3x dx - xy dx - 2ydx + 4dx - x ydy - 2xdy = o
3 2 2
3x dx - (1/2)d(x y ) - 2d(xy) + 4dx = 0
4 2 2
(3/4)x - (1/2)x y - 2(xy) + 4x = c
希望沒解錯...
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 114.47.83.186
推
08/13 21:09, , 1F
08/13 21:09, 1F
→
08/13 21:10, , 2F
08/13 21:10, 2F
※ 編輯: ashyan 來自: 114.47.83.186 (08/13 21:20)
→
08/13 21:21, , 3F
08/13 21:21, 3F
→
08/13 21:21, , 4F
08/13 21:21, 4F
討論串 (同標題文章)