fig2_40.m

来自「现代控制系统（matlab程序）」· M 代码 · 共 9 行

% Chapter 2: Figure 2.40, p. 83
%   Entering the polynomial p(s)=s^3+3s^2+4 and calculating its
%   roots.
%
p=[1 3 0 4];
r=roots(p)
%
p=poly(r)