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The freqz() command returns __________

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+1 vote
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in MATLAB by (37.3k points)
The freqz() command returns __________

(a) No such command

(b) A set of frequencies

(c) Frequency Response

(d) Phase plot

The question was asked during an online interview.

My query is from Fourier Analysis and Filtering in portion Beyond the Basics of MATLAB

1 Answer

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Best answer
Right choice is (c) Frequency Response

Explanation: The freqz() command returns the frequency response of a filter. The input to the command are the numerator and the denominator polynomial.

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