![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/203217/image.png)
sum with odd n+k
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Ladan Avazpour
le 4 Fév 2019
Réponse apportée : Harshit Jain
le 8 Fév 2019
I have a question about how to write a code for this kind of summation. k is predetrmined and my problem is about how to set (n+k odd):![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/202700/image.png)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/202700/image.png)
Thank you in advance for your help...
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Harshit Jain
le 8 Fév 2019
I am assuming that "
" is scalar and hence taking it as "r", but that shouldn't matter for this question. Also please initialize r, k before attemting to run the code. Here is the sample code:
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/203217/image.png)
sum = 0;
for n = 0:k-1
if mod(k+n, 2) == 1
sum = sum + (2*n+1)*r;
end
end
Note: This is not an optimized code and you may write a more optimized implementation.
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