Re: Fitting with a power embedded in a integration
- To: mathgroup at smc.vnet.net
- Subject: [mg88493] Re: Fitting with a power embedded in a integration
- From: Jean-Marc Gulliet <jeanmarc.gulliet at gmail.com>
- Date: Tue, 6 May 2008 06:44:36 -0400 (EDT)
- Organization: The Open University, Milton Keynes, UK
- References: <fvmn0b$8if$1@smc.vnet.net>
lynn wrote: > Dear all, > > I don't know how to fit my data with a power embedded in > a integration, and can't find related answer in this forum. > > This is the function I want to fit > \!\( > \*SubsuperscriptBox[\(\[Integral]\), \(w\), \(R\)]\(c* > SuperscriptBox[\(x\), \(-p\)] > FractionBox[\(x\), > SqrtBox[\( > \*SuperscriptBox[\(x\), \(2\)] - > \*SuperscriptBox[\(w\), \(2\)]\)]] \[DifferentialD]x\)\) > > w is variable, R is a parameter, and c, p is parameters should > be fitted. > > I can't find a way to simplified the power law to log form > so that can't avoid the trouble while fit the power law. > > Thanks a lot for your help! > > Lynn > Lynn, I believe you are using a version prior to 6.0, in this case you should use the _InputForm_ when copying an expression from a Mathematica notebook to an email client: select the cell(s) you want to include in your email, then within the *Cell* menu select either *Convert To* or *Display As* and choose *InputForm*. Finally, copy and paste as usual. As posted, the expression is rendered in a weird (nonsensical) way on my system when copied and pasted. Regards, -- Jean-Marc