Question

How to sum 2D list (array) (matrix) rows in Python

Answer 1

matrix = [[11, 42, 53],
          [78, 50, 989]]

sum_rows = [sum(x) for x in matrix]

print(sum_rows)


'''
run:

[106, 1117]

'''

 

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Answer 2

matrix = [[11, 42, 53],
          [78, 50, 989]]

sum_rows = [sum(x) for x in matrix]

print(sum_rows[0])
print(sum_rows[1])


'''
run:

106
1117

'''

 

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