Re: problem with constants
- To: mathgroup at smc.vnet.net
- Subject: [mg64137] Re: problem with constants
- From: Jean-Marc Gulliet <jeanmarc.gulliet at gmail.com>
- Date: Thu, 2 Feb 2006 00:06:38 -0500 (EST)
- Organization: The Open University, Milton Keynes, UK
- References: <drn068$kah$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Paul wrote: > Hello! > I`m using mathematica 5.0.0.0 > The following error occurred: instead of assigning a constant (e.g. > after using DSolve) with C[1] and so on, the program is using K$... > (... stands for a number) > Do you know the reason? > > Thanks! > Paul > Hi Paul, "Solutions given by DSolve sometimes include integrals that cannot be carried out explicitly by Integrate. Dummy variables with local names are used in such integrals (http://documents.wolfram.com/mathematica/functions/DSolve)." Also, look at the example given in input In[7] below the text line reading "Here is the solution for a more general Abel-type equation. K$ variables are used as dummy integration variables (http://documents.wolfram.com/mathematica/Built-inFunctions/AlgebraicComputation/EquationSolving/FurtherExamples/DSolve.html)." Best regards, /J.M.