SciPy

The dask.visualize API docs mention that args need to be a "dask object", which isn't very clear to newcomers. It may be worth clarifying that we mean a Dask Collection here?

Ref: [The Stack Overflow question which surfaced this misunderstanding](https://stackoverflow.com/q

Describe your issue.

The docstring for factorial2 says:

If n < 0, the return value is 0.

However directly below that in the code, we can see this is not the case for n==-1

if exact:
    if n < -1:
        return 0
    if n <= 0:
        return 1

This

Description

https://numpy.org/doc/stable/reference/generated/numpy.corrcoef.html

https://docs.cupy.dev/en/stable/reference/generated/cupy.corrcoef.html

Seems args are different

Additional Information

dtype argument added in NumPy version 1.20.

Description of the desired feature

The spacing parameter of the rolling_window function controls the distance between the center of two adjacent windows.
Nevertheless, the docstring reads:

    spacing : float, tuple = (s_north, s_east), or None
        The window size in the South-North and West-East directions,
        respectively. A single value means that the size is equal