Matthias B

`FinDiff` applies the derivative operator to the whole grid, not to a single point. But of course, since you say that performance is no problem for you, you can retrieve...

Are you sure that you have installed findiff to the correct environment? Did you install findiff using pip in a virtual environment or systemwide? Or did you install using setup.py...

Hi, what you describe would be an initial condition problem. Currently findiff only handles boundary value problems. For a given boundary point, you can only specify one condition, otherwise the...

Sorry for the late response. I haven't had time for this project lately. Regarding your question, I must say that the PDE functionality is actually a side feature of this...

Do you mean something like the following? ```python import numpy as np # latitude coordinates: thetas = np.linspace(-np.pi/2, np.pi/2, 101) # longitude coordinates: phis = np.linspace(0, 2*np.pi, 101) # set...

The solver cannot yet handle non-linear operators, sorry. I'll add it as a possible future features.

Well, I haven't considered this so far. Sounds like a promising subproject, though. But I guess that I won't have much time for it in the next few months...

That is correct. I will update the documentation accordingly.

So, you basically want to apply the differential operator only at single points instead of the whole grid? Otherwise prescribing the method would not work on at least some part...

Hi, that's the curse of dimensions. ;-) You are using 9x9x9=729 coefficients, most of which are zero in your case. And the number of Taylor terms that need to be...