repeat a vector with a pattern

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Jeong Ho
Jeong Ho 2015-7-7
编辑： Azzi Abdelmalek 2015-7-7
I have a vector v=[1 2] and another vector (1 x n) k (e.g., [1 7 9]). I want to create a new vector,
[v+2*k(1) v+2*k(2) ... v+2*k(n)]
In the example, it would be [3 4 15 16 19 20].
How do I do this in matlab? I'd appreciate your help. Thank you very much in advance!
Best, John

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回答（1 个）

Azzi Abdelmalek
Azzi Abdelmalek 2015-7-7
编辑：Azzi Abdelmalek 2015-7-7
v=[1 2]
k=[1 7 9]
out=cell2mat(arrayfun(@(x) v+2*x,k,'un',0))
or
out=reshape(bsxfun(@plus,v',2*k),1,[])

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