Error:File:C:\MATLAB7\work\Untitled.m Line:1 Column:1 Missin

首页/题库/272℃/2024-05-16 01:46:16

Error:File:C:\MATLAB7\work\Untitled.m Line:1 Column:1 Missing variable or function.

>> num1=[1,1];

>> den1=[1,1,1,0];

>> num2=[2,3];

>> den2=[1,2,1];

>> G1=tf(num1,den1);G2=tf(num2,den2);

>> Gzp1=zpk(G1); Gzp2=zpk(G2);

>> [nums,dens]=series(num1,den1,num2,den2);

>> Gs=G1*G2;

>> [nump,denp]=parallel(num1,den1,num2,den2);

>> Gp=G1+G2;

优质解答：

错误提示与代码不对应吧,我运行了下程序没有错误.

Gzp1,Gzp2,Gs,Gp的结果分别如下

Zero/pole/gain:

(s+1)

----------------

s (s^2 + s + 1)

Zero/pole/gain:

2 (s+1.5)

---------

(s+1)^2

Transfer function:

2 s^2 + 5 s + 3

-------------------------------

s^5 + 3 s^4 + 4 s^3 + 3 s^2 + s

Transfer function:

2 s^4 + 6 s^3 + 8 s^2 + 6 s + 1

-------------------------------

s^5 + 3 s^4 + 4 s^3 + 3 s^2 + s

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