Services & Resources / Wolfram Forums
-----
 /
MathGroup Archive
2004
*January
*February
*March
*April
*May
*June
*July
*August
*September
*October
*November
*December
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 2004

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

Search the Archive

"Rubbish" integration outputs

  • To: mathgroup at smc.vnet.net
  • Subject: [mg45724] "Rubbish" integration outputs
  • From: "Iwonder" <yssual at yahoo.com>
  • Date: Wed, 21 Jan 2004 04:55:10 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

Hi,

I always find me in troubles when integrating ODE that I think Mathematica
should be able to do. It's all right for the very simplest, but consider for
instance the following:

\!\(DSolve[\((x + 2  x\^2 + x\^3)\) \(y'\)[x] + \(x\^2\) \(y''\)[x] == A, y,
    x]\)

'A' a constant. Well, the problem is that I don't even the clue that
Mathematica *cannot* integrate it, there is some output with gibberish, like
K$14646 and the like (those are intermediary variables I guess). So what is
wrong? Is Mathematica expected to return such outputs?

Cheers.



  • Prev by Date: Re: ctrl-I for italics?
  • Next by Date: Re: Transpose matrix does not work when MatrixForm is used, why?
  • Previous by thread: Changing Notebook Attributes
  • Next by thread: Re: "Rubbish" integration outputs