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Re: What am I missing?
Posted:
Nov 23, 2012 5:30 PM


"Roger Stafford" wrote in message <k8mbrg$va$1@newscl01ah.mathworks.com>... > "Greg Heath" <heath@alumni.brown.edu> wrote in message <k8m4qf$8de$1@newscl01ah.mathworks.com>... > > >>A1= round(rand(1,5)) > > A2 = 1A1 > > A = [ A1 ; A2 ] > > Why isn't rankA = 1? >          > For A1 and A2 to be linearly dependent requires that there exist two real or complex numbers, c1 and c2, not both zero, such that c1*A1 + c2*A2 = 0. The equality A2 = 1A1 doesn't qualify for that.
OK!
It's hard to believe I've gotten that screwed up in my mind ... What next?
Thanks.
Greg



