How can I calculate the magnitude of n-dimensional vector by Matlab's commands?

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Mahmood
Mahmood 2012-10-21
编辑： pratyusha adiraju 2016-9-6
Is there any specific command for calculating the magnitude of n-dimensional vector?

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Wayne King
Wayne King 2012-10-21
编辑：Wayne King 2012-10-21
I'll assume by "magnitude", you mean the norm. You can just do
norm(x)
but there are different norms with different results
x = randn(10,1);
norm(x,2)
norm(x,1)
norm(x,inf)
So you have to know which one you want. Just
norm(x)
gives the 2-norm by default.

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Azzi Abdelmalek
Azzi Abdelmalek 2012-10-21
v=[2 3 4 5]
ampv=sqrt(v.^2)

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