Re: Mathematica forgets a solution in DSolve!!!
- To: mathgroup at smc.vnet.net
- Subject: [mg78720] Re: Mathematica forgets a solution in DSolve!!!
- From: "Dr. Wolfgang Hintze" <weh at snafu.de>
- Date: Sat, 7 Jul 2007 06:13:08 -0400 (EDT)
- References: <f6kqt1$kcb$1@smc.vnet.net>
- Reply-to: "Dr. Wolfgang Hintze" <weh at snafu.de>
"Nope" <bernardo.rimanno at email.it> schrieb im Newsbeitrag news:f6kqt1$kcb$1 at smc.vnet.net... > Hi, I just tried to solve a differential equation by writing down > this code: > > DSolve[y'[x]^2 - y'[x]*x + y[x] == 0, y[x], x] > > Mathematica then tells me: > > {{y[x] -> x C[1] - C[1]^2}} > > but I noticed that y = x^2/4 is a solution too!!! > > Is it a Mathematica bug? > > Please answer me if you know something about this problem. > > Thanks :) > Hi, I can confirm the problem in Mathematica 5.2 Ragards, Wolfgang