/Python/How to find the neighbors of an element in matrix python

How to find the neighbors of an element in matrix python

mat = "NxN matrix"
a, b = (2, 3) # the index of the element 
neighbors = [mat[i][j] for i in range(a-1, a+2) for j in range(b-1, b+2) if i > -1 and j > -1 and j < len(mat[0]) and i < len(mat)]

Similar codes

0 vote245 views1 answer
Python3 boto3 put and put_object to s3
Python
3 votes240 views3 answers
Python programming
Python
1 vote255 views1 answer
Complex phase python
Python
-1 vote260 views1 answer
How to know if a string is valid file path python
Python
0 vote274 views1 answer
How to create dll from java code
Python
0 vote248 views1 answer
Custom-field-list_display
Python
0 vote245 views1 answer
Numpy expand_dims
Python
6 votes274 views3 answers
Python moving average pandas
Python
7 votes227 views1 answer
How to truncate values in python to 2 decimal places
Python
0 vote266 views1 answer
How to add to end of linked list python
Python