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How to use for loop structure to calculate two vectors to dot product

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Shuming Ye
Shuming Ye on 20 Feb 2021
Commented: Matt J on 20 Feb 2021
How to use for loop structure to calculate two vectors to dot product.
Please give an example.

Answers (1)

William
William on 20 Feb 2021
a = 1:5;
b = 6:10;
c = 0;
for j = 1:5
c = c + a(j)*b(j);
end
However, this calculation can be done more simply with the dot() function:
c = dot(a,b);
or with the expression:
c = sum(a.*b);

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