2D Array
A 2D array is an array of arrays.
# Define size of 2D array
rows = 3
cols = 5
# Create 2D array
two_d_array = [[0 for width in range(cols)] for height in range(rows)]
# Change a single element
two_d_array [1][2] = 5
# Display 2D array
print(two_d_array)
# Dsiplay 2D array, row by row
for row in two_d_array:
print(row)