How to plot a 2d potential function

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MatlabEnthusiast 2019-2-27

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https://ww2.mathworks.cn/matlabcentral/answers/447278-how-to-plot-a-2d-potential-function

评论： MatlabEnthusiast 2019-2-27

采纳的回答： Stephan

Hi all. Today I came across a function f(X,Y) = cos(2*pi*X)(1+3Y) + ((2*pi*y)^2)/2.

I thought this was a 3d function but apparently it's not. How do i plot this 2D function in MATLAB.

Is there a special function for handling potential functions in MATLAB? thank you very much

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Stephan 2019-2-27

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编辑：Stephan 2019-2-27

在 MATLAB Online 中打开

f = @(X,Y) cos(2*pi.*X).*(1+3.*Y) + ((2*pi.*Y).^2)/2
fsurf(f)

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Stephan 2019-2-27

编辑：Stephan 2019-2-27

在 MATLAB Online 中打开

Yes, you have independent 2 input variables and a resulting value which is usually shown in the 3rd dimension. But of course you also can show this in 2D by using:

fcontour(f)

This results in:

If this answer was helpful, please accept it.

MatlabEnthusiast 2019-2-27

yes. this is very helpful

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