![I am also experiencing a situation like this .here in this image i am trying to make a drawing with epicycloids. but after I imported the png image and started to extract the contour using FindShortestTour, I am getting an error saying that my recursion limit has exceeded. I tried Clearall but to do this I have to import the image first. What should I do to Tackle this situation ][1]

I am also experiencing a situation like this. here in this image i am trying to make a drawing with epicycloids. but after I imported the png image and started to extract the contour using FindShortestTour, I am getting an error saying that my recursion limit has exceeded. I tried Clearall but to do this I have to import the image first. What should I do to Tackle this situation

Yes, I mean "equal". Actually, y is determined by n, Q and alpha. It is an equation about y, but I can not obtain the explicit solution.

Thank you for your hint, Sander. After replacing = with == , it works and I think the syntax is right, but there is not even a point in the figure, it is empty. I do not know why it happens.