/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

1 vote213 views1 answer
Pandas .nlargest
Python
-1 vote201 views1 answer
Jupyternootebok matplotlib inline
Python
0 vote186 views1 answer
Python file get text by regular expression
Python
6 votes205 views3 answers
No matching distribution found for tensorflow==2.2.0
Python
1 vote214 views1 answer
Fourreau de maroquin
Python
0 vote225 views2 answers
Flask conditional according to urrl
Python Flask
0 vote142 views1 answer
Glob.iglob sort path
Python
0 vote222 views3 answers
Flask models
Python
11 votes261 views5 answers
Linear regression in python
Python
0 vote189 views1 answer
Dask dataframe csv tutorial
Python