Ko =(abs(sl-p0)*prod(abs(sI- poles)))/(abs(s1-z0)*prod(abs(sl-zeros))) K 19.3137 Let us also check this result using the root locus D=zpk(z0;p0,1); GO=D*GH locus(Go) 2022-2-11 202022-2-11 20 Ko = (abs(s1-p0)*prod(abs(s1- poles)))/(abs(s1-z0)*prod(abs(s1-zeros))) Ko = 19.3137 Let us also check this result using the root locus. D = zpk(z0,p0,1); Go=D*GH; rlocus(Go)