Are MATLAB function zp2tf() and tf2zp() are complementary or not?

1. What is zp2tf function in Matlab?
2. What is tf2zp in Matlab?
3. How to find zeros and poles of transfer function in matlab?

What is zp2tf function in Matlab?

Convert zero-pole-gain filter parameters to transfer function form.

What is tf2zp in Matlab?

[ z , p , k ] = tf2zp( b , a ) finds the matrix of zeros z , the vector of poles p , and the associated vector of gains k from the transfer function parameters b and a . The function converts a polynomial transfer-function representation.

How to find zeros and poles of transfer function in matlab?

First convert the poles and zeros to transfer function form, then call fvtool . Click the Pole/Zero Plot toolbar button, select Analysis > Pole/Zero Plot from the menu, or type the following code to see the plot. To use zplane for a system in transfer function form, supply row vector arguments.