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MathGroup Archive 1998

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Re: A "singular" equation

  • To: mathgroup at smc.vnet.net
  • Subject: [mg14725] Re: A "singular" equation
  • From: "Kevin J. McCann" <kevinmccann at Home.com>
  • Date: Wed, 11 Nov 1998 17:53:32 -0500
  • Organization: @Home Network
  • References: <728ke6$ego@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Not on W95:

In[39]:=DSolve[(1-x^2)y'[x]^2==(1-y[x]^2),y[x],x]

Out[39]={{y[x] -> (x - Sqrt[-1 + x^2] + x*C[1]^2 + Sqrt[-1 +
x^2]*C[1]^2)/(2*C[1])}}


Patrick McLean wrote in message <728ke6$ego at smc.vnet.net>...
>Trying to solve an ode ("Euler's" equation) Mathematica consistently
>crashes as follows:
>
>% math
>Mathematica 3.0 for Solaris
>Copyright 1988-96 Wolfram Research, Inc.
> -- Terminal graphics initialized --
>
>In[1]:= DSolve[(1-x^2)y'[x]^2==(1-y[x]^2),y[x],x] Bus Error (core
>dumped)
>%
>
>This seems pretty bad form, I must say.
>



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