Undefined operator '-' for input arguments of type 'matlab.gr​aphics.cha​rt.primiti​ve.Contour​'.

I am trying to do a contour plot and I get the error shown in the summary. The plot appears correctly, but the program stops at this point. What does this error mean?

Answer 1

[Voss]

This error means that you can't subtract something from a contour object (and you can't subtract a contour object from something). A contour object is a graphical object akin to a line or a patch or a text, not a numeric object that you can do mathematical operations with.

If you post your code, someone can show you how to do what you are intending to do.