Plotting an implicit curve
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I was wondering on how I could plot this curve :
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1396184/image.png)
I tried both 'fplot' and 'plot' but I kept getting this : 'Input must be a function handle or symbolic function. '. If I use 'fimplicit3' I get an empty graph.
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Torsten
2023-5-27
You might use plot3(t,x3,x4) or something similar after getting numerical arrays from the solution of your 2nd order ODE, but to do so, you don't need the equation from above.
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