I Want to find stable output of transfer function using oid but the comment is '??? Undefined function or variable 'pid'.'

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gilbert lua 2019-8-9

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评论： Star Strider 2019-8-12

>> pid

??? Undefined function or variable 'pid'.

>> pid

??? Undefined function or variable 'pid'.

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Star Strider 2019-8-9

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The pid function is part of the Control System Toolbox. It was introduced in R2010b.

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gilbert lua 2019-8-9

thankyou

Star Strider 2019-8-12

My pleasure.

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Neuropragmatist 2019-8-9

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编辑：Neuropragmatist 2019-8-9

You want to use the function 'pid':

https://uk.mathworks.com/help/control/ref/pid.html

but you get an error?

Did you check that you have the control system toolbox, which pid is a part of? You can type 'ver' at the command console and the result will tell you what toolboxes you have.

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gilbert lua 2019-8-9

but can i get the tool box??

Neuropragmatist 2019-8-12

You will have to buy the toolbox, you can do this on this website (i.e. click on 'products' at the top of the webpage) or by going to your Matlab, click on the 'Apps' tab in the console window and select 'get more apps'.

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