Shortest Distance between two vectors

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Algorithms Analyst
Algorithms Analyst 2013-6-26
评论： Jan 2021-6-10
How can I find the shortest distnace between two vectors of same length?
is it like that
sqrt(vectorA+vectorB).
Thanks

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回答（3 个）

Jan
Jan 2013-6-26
编辑：Jan 2013-6-26
"Vectors" can be moved freely by definition, so all vectors might have the distance 0. Or 42.
Do you mean lines, which require on point and a direction vector as a definition? Or do you mean the distance between the points these vectors point to from the origin?
For the latter case:
sqrt(sum((vectorA - vectorB) .^ 2))
Roger Stafford
Roger Stafford 2013-6-26
If by "distance" you mean the Euclidean distance between the vectors considered as "points" in n-dimensional space, n being the number of elements in each vector, then it would be this:
norm(vectorA-vectorB)
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dror yemini
dror yemini 2021-6-10
but if vectors ar a n*2 and b m*b diffrent lengths
Jan
Jan 2021-6-10
@dror yemini: The comment is not clear.
n = 3;
m = 4;
b = 5;
x = rand(n, 2);
y = rand(m, b);
Now what do you want to calcultae?

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Shilpi Sunil Kumar
Shilpi Sunil Kumar 2018-2-20
What if the vectors are n1*n1*n3? Matlab function norm does not work in that case.

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