Victor Leite

Almost forgot.. here is a simpler MFE: ``` from devito import (Eq, Operator, Grid, Function, TimeFunction) grid = Grid(shape=(10,10)) f = Function(name="f", grid=grid, space_order=4) g = Function(name="g", grid=grid, space_order=4) h...

That was really clarifying! Thanks a lot! I could work on this short tutorial. I'm moving the second topic (case without `implicit_dims`) to another issue then. I just need to...

@FabioLuporini, as far as I understood the problem, we could just check `deriv_order` and `space_order` in `evaluate` of `Derivative`. The only thing I'm still figuring out is when `spacer_order` or...

We could check it in `evaluate` or `__new__` of `Derivative`: ```python @property def evaluate(self): # Evaluate finite-difference. # Note: evaluate and _eval_fd splitted for potential future different # types of...