using fimplicit function to plot
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Maria Galle
am 2 Okt. 2020
Bearbeitet: John D'Errico
am 2 Okt. 2020
I'm trying to make a plot using the fimplicit function but the figure is empty.
zf(1) = figure(1);
za(1) = axes;
c = -4:2:4;
fimplicit(@(x,y) y.^2 - x.^2- c);
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Ameer Hamza
am 2 Okt. 2020
For a single graph, c must be a scalar. If you want to plot the graph for all values in c, you can use for-loop or arrayfun() (kind of implicit for-loop)
zf(1) = figure(1);
za(1) = axes;
hold(za(1))
C = -4:2:4;
arrayfun(@(c) fimplicit(@(x,y) y.^2 - x.^2 - c), C);
2 Kommentare
Ameer Hamza
am 2 Okt. 2020
Move figure() and axes() out of for loop
zf(1) = figure(1);
za(1) = axes;
hold(za(1));
for c=-4:2:4
fimplicit(@(x,y) y.^2 - x.^2- c);
end
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John D'Errico
am 2 Okt. 2020
Bearbeitet: John D'Errico
am 2 Okt. 2020
As an alternative to the use of fimplicit, you can simply think of this as a contour plot. That is essentially all fimplicit does.
c = -4:2:4;
fxy = @(x,y) x.^2 - y.^2;
H = fcontour(fxy,[-5,5, -5,5],'LevelList',c);
Either way works. A contour plot has the virtue that you can create all level lines in one call and no need to loop.
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