Talk:Characteristic polynomial

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These ubiquitous imaginary numbers

The degree of this polynomial equals the length of the matrix's side. The number of roots therefore also equals this number, though some roots may be repeated.

That's not true: if the scalar field is - and not - the number of roots may be smaller than the dimension of the matrix. Therefore, I changed it.

FrankC aka ComedyFan 11:12, 1 June 2010 (EDT)