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Math Forum » Discussions » Software » comp.soft-sys.matlab

Topic: What am I missing?
Replies: 5   Last Post: Nov 23, 2012 5:30 PM

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Bruno Luong

Posts: 8,785
Registered: 7/26/08
Re: What am I missing?
Posted: Nov 23, 2012 1:13 AM
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"Greg Heath" <heath@alumni.brown.edu> wrote in message <k8m4qf$8de$1@newscl01ah.mathworks.com>...
> % help rank
> %
> % rank Matrix rank.
> % rank(A) provides an estimate of the number of linearly
> % independent rows or columns of a matrix A.
>

> >>A1= round(rand(1,5))
> A2 = 1-A1

Multiply a vector (here A1) by (-1) is a linear operator, however adding 1 to a vector is not.

Thus A2 is linear independent to A1. (unless if A1 is a constant vector).

Bruno



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