McCoy Group References

FiniteDifference1D

A one-dimensional finite difference derivative object. Higher-dimensional derivatives are built by chaining these.

Properties and Methods

get_stencil: method

__init__(self, finite_difference_data, matrix): 

@property
order(self): 

@property
weights(self): 

@property
widths(self): 

apply(self, vals, val_dim=None, axis=0, mesh_spacing=None): 

Applies the held FiniteDifferenceMatrix to the array of values

vals: np.ndarray | sparse.csr_matrix

values to do the difference over
val_dim: int

dimensions of the vals
axis: int | tuple[int]

the axis to apply along
mesh_spacing: float

the mesh spacing for the weights
:returns: np.ndarray

No description…

sparse_tensordot(sparse, mat, axis): 

Not sure how fast this will be, but does a very simple contraction of mat along axis by the final axis of sparse

    Heavily de-generalized from here: https://github.com/pydata/sparse/blob/9dc40e15a04eda8d8efff35dfc08950b4c07a810/sparse/_coo/common.py - `sparse`: `sparse.sparsemat`
>No description... - `mat`: `np.ndarray`
>No description... - `axis`: `Any`
>No description... - `:returns`: `_`
>No description...

Examples