Mathematica 9 is now available
Services & Resources / Wolfram Forums
-----
 /
MathGroup Archive
2007
*January
*February
*March
*April
*May
*June
*July
*August
*September
*October
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 2007

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

Search the Archive

Re: Manipulate a complex expression

  • To: mathgroup at smc.vnet.net
  • Subject: [mg77875] Re: Manipulate a complex expression
  • From: Daniele <d.malleo at gmail.com>
  • Date: Tue, 19 Jun 2007 06:29:26 -0400 (EDT)
  • References: <f505ip$qug$1@smc.vnet.net><f5328f$2vo$1@smc.vnet.net>

On 17 Jun, 11:26, Januk <ggr... at sarj.ca> wrote:
> Hi Daniele,
>
> On Jun 16, 4:04 am, Daniele <d.mal... at gmail.com> wrote:
> <snip>>  if I define VolumeFraction (eg. VolumeFraction=0.1) and plot
> > Re[MeasuredCMF] vs. f, I have no problem.
> > But I am unable to successfully do the following (I get a blank plot)
>
> > Manipulate[
> >  LogLinearPlot[
> >   Evaluate[Re[MeasuredCMF]], {f, 1 10^5, 1 10^9}], {{VolumeFraction,
> >    0.2}, 0.1, 0.5}]
>
> <snip>
>
> You pretty much have it.  You just need to force Mathematica to use
> the local variable from the Manipulate.  One easy way is to use
> ReplaceAll to rename VolumeFraction to a temporary variable
> (VolumeFraction2):
>
> Manipulate[
>  LogLinearPlot[
>   Evaluate[
>    Re[MeasuredCMF] /. {VolumeFraction -> VolumeFraction2}], {f, 10^5,
>    10^9}],
>  {{VolumeFraction2, 0.2}, 0.1, 0.5}]
>
> Good luck!

Hello Januk,
Thanks for your help.
Your suggestion works, but only to a point.
For example, in the snippet of code above, if MeauredCMF is a function
of VolumeFraction and VolumeFraction itself is a function of a third
variable, say Volume, I'm still unable to visualize how Measured CMF
changes with Volume, even using  ReplaceAll.
I'm puzzled because it would seem logical that if a is a function of b
and b is a function of c, then a is a function of c.
I appreciate your help,
Daniele



  • Prev by Date: Re: Rule and Module not working together
  • Next by Date: Re: Rule and Module not working together
  • Previous by thread: Re: Re: Manipulate a complex expression
  • Next by thread: Re: Manipulate a complex expression