Re: Interpolating matrix
- To: mathgroup at smc.vnet.net
- Subject: [mg45529] Re: Interpolating matrix
- From: Paul Abbott <paul at physics.uwa.edu.au>
- Date: Mon, 12 Jan 2004 02:15:39 -0500 (EST)
- Organization: The University of Western Australia
- References: <btndag$37$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
In article <btndag$37$1 at smc.vnet.net>,
Zsolt Regaly <rezso at general.elte.hu> wrote:
> Hi
>
> Could anybody help me to find out how can I interpolate a matrix?
>
> Let'us have a 10x10 matrix and I'd like to make a DensityPlot by
> resolution of 100x100 for example.
Use Interpolation. Here is some (indexed) data:
Table[{x, y, Cos[x y]}, {x, 0, 1, 0.2}, {y, 0, 1, 0.2}]
Interpolate (after converting to a one-dimensional data list),
cosint=Interpolation[Flatten[%, 1]]
and then plot:
DensityPlot[cosint[x,y],{x,0,1},{y,0,1},PlotPoints->100, Mesh-> False];
Cheers,
Paul
--
Paul Abbott Phone: +61 8 9380 2734
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