When I run my code, I keep getting this error: Unable to convert expression into double array."

2022 2 12
1 个回答
更新时间：2022 2 14
1 次查看（30 天）

0 个投票

clear all
close all
syms z w
Gz=z/(z-1);
Gjw=subs(Gz,z,exp(j*w));
figure(1)
subplot(2,1,1)
stem(real(Gjw))
xlabel('frec (Hz)')
ylabel('MÓDULO')
stem(imag(Gjw)) %grafica la parte imag
subplot(2,1,2)
xlabel('frec (Hz)')
ylabel('ARGUMENTO')
sgtitle('G(jw)')

请先登录，再回答此问题。

回答（1 个）

Benjamin Thompson
Benjamin Thompson 2022-2-14

0 个投票

You should use i for the imaginary number, instead of j. In your subs command you have not defined what w is.
>> Gjw
Gjw =
exp(w*1i)/(exp(w*1i) - 1)
>> Gjw=subs(Gz,z,exp(i*w));
>> Gjw=subs(w, 2);
>> stem(real(Gjw))
Now there should be no error

类别

在 帮助中心 和 File Exchange 中查找有关 Logical 的更多信息

产品

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by