Change the documentation of the gradient function that it uses first order central difference in the interior #8607
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Sorry for this late answer... Yes, what you state is what happened. Afterwards there was some work where I was not really involved. So I guess the issue got addressed somehow differently. There are different definitions for "second order" difference. It was proposed at least to give the definition used, inside the documentation - otherwise users might be confused about the outcome of the gradient function as I was. In case the documentation of the gradient function contains the definition now I would say this issue can be closed. But I have not checked it yet. |
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Closing - the docs said "second order error", not "second order difference" |
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There is a "typo" in the documentation of the gradient function
(https://docs.scipy.org/doc/numpy/reference/generated/numpy.gradient.html).
The implementation is using first order central difference in the interior. But the documentation states that central difference of second order would be used.
I can make a fix available when this issue gets approved.
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