add to a vector by plus 1 and plus 2

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polo Mahmoud
polo Mahmoud 2019-12-9
回答： ME 2019-12-9
hi if you have a vector like this:
X = [1;2;3];
and want to plus number 1 with 1 and number 2 with 2 ect.
can this be done in a loop ?

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回答（1 个）

ME
ME 2019-12-9
I think this should do what you are after
X = [1;2;3];
for i=1:3
X(i) = X(i)+i;
end
Another way would be to do:
X = [1;2;3];
Y=1:3;
X=X+Y';

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