Problem with a function tf

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Victor Alfonso Andrade Soto
评论： Star Strider 2020-12-10
Hello everyone, yesterday i was using Matlab 2020a creating a proyect using de function 'tf' but Matlab doesn't recognize this comand to do a transfer function, i used the correct syntax, I update to Matlab 2020b because i learned that it could be the versión that i used, but i have the same problem, apparently i have already install CONTROL SYSTEM TOOLBOX but it doesn't works
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Walter Roberson
Walter Roberson 2020-12-10
You do not appear to have Control System Toolbox installed.
Victor Alfonso Andrade Soto
Victor Alfonso Andrade Soto 2020-12-10
When i tried to install that complement i saw that there is a message and said that the complements is already install in my computer.

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回答（1 个）

Star Strider
Star Strider 2020-12-9
Run these from a script or your Command Window:
restoredefaultpath
rehash toolboxcache
and try using tf again.
If it still is not working after that, Contact Support
  2 个评论
Star Strider
Star Strider 2020-12-10
Apparently you never managed to install the Control System Toolbox, although in your original Question, you said that you had installed it.
Contact Support at the link I provided. They will help you figure out how to get it installed and working correctly.

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