interp2 ... How does it work?

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martin martin 2019-4-21

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https://ww2.mathworks.cn/matlabcentral/answers/457641-interp2-how-does-it-work

评论： Rik 2019-4-21

Hello guys,

I'm looking to find a mathematical basis for explaining the interpolation methods for "linear", "cubic", "nearest", "makima" and "spline" of function interp2. Matworks webside is very brief. I have matrix of numbers for example:

a = rand(4);
Vq = interp2(a,1,'method')

and I want compute only finite values.

Any help?

Best regards

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Rik 2019-4-21

For all methods you mention the result is an array of only finite values. Is your question about that, or do you want to know the interpolation method? Because that isn't really a Matlab question, as the interpolation methods are widely used (hence the short explanation in the doc).

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