[微積] Nonlinear, autonomous ODE

[ImFluid (What's important?)]

Solve y(x)

y" - (1/y)y' + y^2 =0

有試reduction of order
u(y) = y'
得到 u' + (y^2)(u^-1) -(1/y) = 0

接下來就卡住了...


--
Sent from my Windows Phone

--
※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 32.147.232.180
※ 文章網址: http://www.ptt.cc/bbs/Math/M.1415749129.A.42D.html