MathGroup Archive 2005

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: Problem with DSolve


Hi,

(DSolve[{(y'[x])^2 - x y'[x] + y[x] == 0, y[0] == y0}, y[x], x] //
FullSimplify[#, x > -4] &)


is a linear function in x ...

Regards

  Jens

"Anand" <anand at phy.duke.edu> schrieb im Newsbeitrag 
news:csaek2$oss$1 at smc.vnet.net...
> Consider this simple 1st order equation
>
> DSolve[(y'[x])^2 - x y'[x] + y[x] == 0, y[x], x]
>
> The generic solution should be y= c ( x - c)
> and in addition a singular solution of this equation is y = x2/4 .
>
> The solution Mathematica produces is different. At least I could not
> relate it to the above solutions. What am I missing?
> sincerely, -anand.
>
> 



  • Prev by Date: global option?
  • Next by Date: Re: GUIKit: <<file quirk
  • Previous by thread: Re: Problem with DSolve
  • Next by thread: Re: Problem with transformation rule of a function -- Another one