why isnt the function tf working

258 次查看（过去 30 天）
Minh-Buu Nguyen
Minh-Buu Nguyen 2020-3-20
评论： lounis chehrit 2021-6-10
why isnt the function tf working?
i keep getting error message
  6 个评论
显示 4更早的评论
Star Strider
Star Strider 2020-3-22
That depends on the type of license you have.
What sort of license do you have? Are you using MATLAB as part of a university license or a personal license?
lounis chehrit
lounis chehrit 2021-6-10
Just a question is It normal to have a transfer function like this ?
It's definied by :
Real(TF(v)) = cos(2*pi*v).
and phase is 0.
I thing that the parameter s=j*w.
So is It normal to have a real part like this? ( parameter in the cosine)
and how to get transfert function from real and image parts.

请先登录，再进行评论。

请先登录，再回答此问题。

回答（1 个）

Samatha Aleti
Samatha Aleti 2020-3-27
Hi,
If you have the licensed product “Control Systems Toolbox”, but have not installed yet, you can do as follows:
  • Go to MATLAB - > HOME -> Add-Ons -> Get Add-ons -> search for “Control Systems Toolbox” -> click Install
If you do not have the product, then
For any support regarding purchase or License contact the sales team:
www.mathworks.com/support/contact_us/
  4 个评论
显示 2更早的评论
lounis chehrit
lounis chehrit 2021-6-10
Just a question is It normal to have a transfer function like this ?
It's definied by :
Real(TF(v)) = cos(2*pi*v).
and phase is 0.
I thing that the parameter s=j*w.
So is It normal to have a real part like this? ( parameter in the cosine)
and how to get transfert function from real and image parts.

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Introduction to Installation and Licensing 的更多信息

标签

Community Treasure Hunt

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

Start Hunting!

Translated by