How to check that two column vectors are multiple of each other?

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Example [1;2;3] and [2;4;6]. Are there any specific functions i can use?

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Star Strider
Star Strider 2018년 5월 18일
One option is to concatenate them and then use the rank function to check to see if they are linearly dependent.
For this particular problem, this works:
a = [1;2;3];
b = [2;4;6];
c = [a b];
LinDep = rank(c) < min(size(c))
Here, if ‘LinDep’ (‘linearly dependent’) is true (or 1), at least two columns or rows are multiples of each other.

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