slice[0]
slice[0:1]
slice[0:1:2]
slice[:]
slice[:-1]
slice[1:]
slice[::-1]
slice[d :: d + 1]
slice[:c, c - 1]
numpy[:, 0:1]
numpy[:, :-1]
numpy[0, :]
numpy[:, i]
numpy[0, :2]
numpy[:N, 0]
numpy[:2, :4]
numpy[2:4, 1:5]
numpy[4:, 2:]
numpy[:, (0, 1, 2, 5)]
numpy[0, [0]]
numpy[:, [i]]
numpy[1 : c + 1, c]
numpy[-(c + 1) :, d]
numpy[:, l[-2]]
numpy[:, ::-1]
numpy[np.newaxis, :]

( spaces [::  ,  a  :  ,  a  :  a  :  a  ,  ] )