Expand numpy in docstring

[jerobado]

Fixes #1482

[Yash-10]

Thanks, @jerobado for this pull request!

While this solves one case, I see a few more cases in the docstrings where np.array is used instead of numpy.array, which can be seen by searching for "np.array" in the top-left corner in GitHub, for example. Could you also fix those?

[Yash-10]

Also, I think numpy.ndarray would be a better choice than numpy.array.

[jerobado]

Got it @Yash-10. I'll search for other cases. Thank you!

[jerobado]

Hello @Yash-10, I was able to find these additional files that needs to updated:

src/poliastro/core/elements.py
src/poliastro/core/util.py
src/poliastro/maneuver.py

Can you kindly confirm if these two lines needs to be included as well?

poliastro/src/poliastro/core/elements.py

Line 74 in ada3fce

r: ndarray

poliastro/src/poliastro/core/elements.py

Line 76 in ada3fce

v: ndarray

[Yash-10]

Can you kindly confirm if these two lines needs to be included as well?

Great! Yes, they would also need to be changed to numpy.ndarray since just ndarray does not seem to help documentation identify it correctly.

Apart from this, I also realized that these files:

src/poliastro/core/thrust/change_a_inc.py
src/poliastro/core/thrust/change_argp.py
src/poliastro/core/iod.py

also have docstrings that show numpy.array which also would be a good thing to change to numpy.ndarray

[Yash-10]

The documentation build error seems unrelated (not sure, though, about its cause) but the changes look good to me!

[astrojuanlu]

LGTM!

[astrojuanlu]

Forcing a merge of this one, as @Yash-10 says the docs error seems unrelated