I have a matrix q and i need the diagonal of qq'

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lowcalorie
lowcalorie am 8 Feb. 2012
I have a 5x5 matrix q and i need to obtain the diagonal of qq' anyone know how to do this and what qq' is?

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Dr. Seis
Dr. Seis am 8 Feb. 2012
In your Help Navigator, search for "arithmetic operators" and "diag"
diag(q*q')
is the same as
diag(q*transpose(q))
if all of the elements in q are real. Otherwise ' will give you the complex-conjugate transpose.

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chengxuan yu
chengxuan yu am 8 Feb. 2012
Does the q is the z and q' is the transposed matrix of q?

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