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

Is there any specific command for calculating the magnitude of n-dimensional vector?

[Star Strider]

What do you mean by magnitude?

By definition, a vector has only one dimension.

Answer 1

[Wayne King]

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.

Answer 2

[Azzi Abdelmalek]

v=[2 3 4 5]
ampv=sqrt(v.^2)

[pratyusha adiraju]

magnitude calculation procedure is r = [x y z]

rmag = (x^2 + y^2 + z^2)^0.5

so in matlab rmag =sqrt(sum(r.^2))