Hi,

https://matplotlib.org/api/_as_gen/matplotlib.axes.Axes.contour.html says

the contour function accept a vector parameter V which must be in

increasing value. But the contour function in MATLAB does not have this

restriction.

I understand the underlining implementation of these two functions could be

very different. I want to understand what is the purpose of this

restriction, and if it possible to create a contour image the same as

MATLAB does by using contour with V = [0 0]?

Regards,

David

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