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Error: "Difference order N must be a positive integer scalar"
I wrote a script : [x,y]=meshgrid(0:1:500, -100:1:100); k=(2*pi)/30; Q=25*k; l=(2*pi)/30; f=2*(cos((k*x)+Q).*cos(l*y)); xl...
4 years 前 | 2 个回答 | 0
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How to add black isolines for f(x,y) = -1, 0, 1
Hi , I have f(x,y) and I want to add black isolines for f(x,y) = -1, 0, 1. How can I do it? Thanks
4 years 前 | 1 个回答 | 0
