How to plot sin(xy)=sin(x)+sin(y)?

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Simple Life
Simple Life 2022-2-22
回答： Carlos Guerrero García 2022-11-22
It is easy to plot y=sin(x), but how to sin(xy)=sin(x)+sin(y)?

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采纳的回答

John D'Errico
John D'Errico 2022-2-22
Ran in:
This is called an implicit function. Use fimplicit. Again, easy.
fimplicit(@(x,y) sin(x.*y) - sin(x) - sin(y))

更多回答（1 个）

Carlos Guerrero García
Ran in:
"contour" command provides another way to plot an implicit function defined by an expression like F(x,y)=0. For the implicit function in this question, the following code can also be used:
[x,y]=meshgrid(-5:0.01:5); % Establising the canvas...
contour(x,y,sin(x.*y)-sin(x)-sin(y),[0 0]) % ...for plotting sin(xy)-sin(x)-sin(y)=0

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