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> The second is from Challenging Problems in Linear Algebra. Show that a Matrix A is of rank 1 if and only if A can be written as A = xy^t for some column vect
by spacehome 11y ago
> The second is from Challenging Problems in Linear Algebra. Show that a Matrix A is of rank 1 if and only if A can be written as A = xy^t for some column vectors x and y.
This is quite the challenging problem in linear algebra, considering that it's not true!
[[0]] = [0]*[0]^t