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how can I get y which correspond to x and then plot (x,y)??

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jameslk
jameslk 2021-6-16
回答： Rafael Hernandez-Walls 2021-6-16
syms x y
x=[-4:1:4]
f = y^3+0.2*exp(-1*x^2)*y^2-2.2039*y^2+0.8155 == 0;

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回答（1 个）

Rafael Hernandez-Walls
Try this:
x=linspace(-4,4);
for r=1:length(x)
y(r)=fzero(@(y)y.^3+0.2*exp(-1*x(r).^2)*y.^2-2.2039*y.^2+0.8155,1);
end
plot(x,y)

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