initialize a 2d matrix in python code example
Example 1: python initialize a 2d array
x = [[foo for i in range(10)] for j in range(10)]
Example 2: how to create 2d list in python
o=[]
for i in range(0,rows):
x=[]
for j in range(0,cols):
x.append(0)
o.append(x)
Example 3: 2d array python initialize
[[element] * numcols] * numrows
Example 4: initialise a 2d array python
x = [[foo for i in range(10)] for j in range(10)]
Example 5: python initialize a 2d array
bar = [SOME EXPRESSION for item in some_iterable]
Example 6: 2d array python initialize
>>> b = [['a']*3]*3
>>> b
[['a', 'a', 'a'], ['a', 'a', 'a'], ['a', 'a', 'a']]
>>> b[1][1]
'a'
>>> b[1][1] = 'b'
>>> b
[['a', 'b', 'a'], ['a', 'b', 'a'], ['a', 'b', 'a']]