# How can I plot the characteristic polynomial? [duplicate]

For example, I have:

CharacteristicPolynomial[m, x]

0.5 + 0.1 x + x^2


But

Plot[CharacteristicPolynomial[m,x], {x,-1, 1}]


gives errors.

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Plot has HoldAll attribute so you need to Evaluate it first or add the option , Evaluated -> True. –  Kuba Nov 15 '13 at 9:34
I think it should be marked as a duplicate of Evaluate or not or expression evaluation in Plot. –  Kuba Nov 15 '13 at 9:43