"""
Exercise 5.7 from "A primer on..."

Create an array w and demonstrate how various
slicing operations work.
"""


import numpy as np

w = np.linspace(0, 3, 31)

print(w[:])         #the entire array
print(w[:-2])       #entire array except two last elements
print(w[::5])       #Every 5th element
print(w[2:-2:6])    #starting from 2, every 6th el. up to -2


"""
Terminal> python slicing.py 
[0.  0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.  1.1 1.2 1.3 1.4 1.5 1.6 1.7
 1.8 1.9 2.  2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3. ]
[0.  0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.  1.1 1.2 1.3 1.4 1.5 1.6 1.7
 1.8 1.9 2.  2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8]
[0.  0.5 1.  1.5 2.  2.5 3. ]
[0.2 0.8 1.4 2.  2.6]
"""