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on 15 Oct 2021
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f=@(x,y,z)x^2+1e2*(y^2+z^2)/(7-x)^2-1;
figure(Color='#113');
p=fimplicit(@(x,y)f(x,y,0));
Warning: Function behaves unexpectedly on array inputs. To improve performance, properly vectorize your function to return an output with the same size and shape as the input arguments.
X=p.XData;
Y=p.YData;
X(274)=-.1;
Y(274)=1;
a=fill(X,Y,0);
hold on;
b=fill3(X,X-X,Y,0);
c=fimplicit3(f,EdgeC='n');
Warning: Function behaves unexpectedly on array inputs. To improve performance, properly vectorize your function to return an output with the same size and shape as the input arguments.
set([a,b,c],FaceC='#CDE')
axis equal off;
view(-145,15);
light(Pos=[1 1 1]);
material metal;
xlim([-.9 1]);
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