Re: Inverse Interpolation
- To: mathgroup at smc.vnet.net
- Subject: [mg120966] Re: Inverse Interpolation
- From: Fred Simons <f.h.simons at tue.nl>
- Date: Fri, 19 Aug 2011 06:34:35 -0400 (EDT)
- Delivered-to: l-mathgroup@mail-archive0.wolfram.com
- References: <201108180722.DAA11854@smc.vnet.net>
The points used by the function Plot can be found in the plot itself:
With[{gr = Plot[Cos[x], {x, -1, 1}]}, Cases[gr, Line[x_] :> x,
Infinity][[1]]]
Regards,
Fred Simons
Eindhoven University of Technology
Op 18-8-2011 9:22, WetBlanket schreef:
> Previously, the following code could be used to use the Plot functions
> algorithm to select point at which to evaluate a function to assist in
> obtaining a good numerical interpolation. In Version 8 this code does
> not seem to work ( at least for me). Can someone assist me by showing
> how this task is best accomplished in Version 8. I use the Cos
> function in this example for simplicity. Clearly, numerical
> interpolation is not needed to obtain an inverse for the Cos.
>
> list={};
> F = Cos[x];
>
> Plot[ ( ss=F; AppendTo[list, {ss,x}]; ss), {x,-1,1}, PlotPoints-
>> 1000,
> PlotRange->All, AxesLabel->{"x","F"}]
>
> Thanks for the help.
>
>
- References:
- Inverse Interpolation
- From: WetBlanket <wyvern864@gmail.com>
- Inverse Interpolation