If a transfer function Y is expressed in MATLAB as a ratio o

If a transfer function Y is expressed in MATLAB as a ratio of factors in the numerator and denominator, which command can be used to convert to a transfer function expressed as coefficients in the numerator and denominator? tf(Y) zpk(Y) zP2tf(Y) tf2zp(Y)

Solution

tf(Y)-this is the correct answer

For example

a=2

b=3

H=tf(a^2,[1,2*a*b,b^2])