Python Given r 3 and c 6 create a two dimensional NumPy ar

Python: Given r = 3 and c = 6, create a two dimensional NumPy array A with r rows and c columns. The elements of the array should be i * j, where i is the row index and j is the column index.

How would you do this?

Thanks!

Solution

Python 2.7 code:

import numpy as np
r = 3;
c = 6;
M = np.ndarray(shape = (r,c), dtype = int)
for i in range(0,r):
   for j in range(0,c):
       M[i][j] = i*j

for i in range(0,r):
   for j in range(0,c):
       print M[i][j],
   print \"\"

Sample Output:

0 0 0 0 0 0
0 1 2 3 4 5
0 2 4 6 8 10