How can I return a list having the following sum v[i]=A[i,2i]+A[i,2i+1]

Question

A is a matrix of size nx2n ,and I'm trying to write a Python code that will return the list v without using a for loop using numpy functions.

This question is better suited for stack overflow – ab123 Sep 16 '19 at 07:29 — ab123, Sep 16 '19 at 07:29

score 1 · Answer 1 · answered Sep 16 '19 at 07:33

1

li = [A[i][2*i] + A[i][2*i + 1] for i in range(n)]

answered Sep 16 '19 at 07:33

ab123

This will return the list ? – user3133165 Sep 16 '19 at 07:35
@user3133165 yes, li is the required list – ab123 Sep 16 '19 at 07:36
This uses a for loop inside the list comprehension though – ab123 Sep 16 '19 at 07:40
Is there a solution using numpy twithout having to use any for ? – user3133165 Sep 16 '19 at 07:46
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@user3133165 I can't say for sure. You should ask on Stack Overflow. Also, even if you do get such a method, it might internally use for or its equivalent – ab123 Sep 16 '19 at 08:38

1 Answers1