Question

Which of the following command generates the impulse response of a system which has more zeros than poles?

(a) impulse()

(b) impulse[]

(c) impulse{}

(d) No such command

I got this question in an online interview.

I would like to ask this question from Time Response of Control Systems topic in section Control System Applications of MATLAB

Answer 1

Correct option is (d) No such command

The explanation is: There isn’t any command defined in MATLAB which will compute the response of a system having more zeros than poles. Such a system is unstable at higher frequencies.