Installed package is not working

I downloaded the controls and systems package and it shows installed in my app manager, however when I type ver 'controls' into the command window, it says it cannot find anything named 'controls.' I'm wondering how to ammend this as I would like to use the tf function. I have already uninstalled and reinstalled the package with no fix. Thanks in advance!

Answer 1

[Steven Lord]

In order to see Control System Toolbox in the output of ver, specify 'control' (singular) instead of 'controls' (plural).

ver controls

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MATLAB Version: 24.2.0.2754538 (R2024b) Update 1
MATLAB License Number: 40912989
Operating System: Linux 5.15.0-1062-aws #68~20.04.1-Ubuntu SMP Wed May 1 15:24:09 UTC 2024 x86_64
Java Version: Java 1.8.0_292-b10 with AdoptOpenJDK OpenJDK 64-Bit Server VM mixed mode
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Warning: No properly formatted Contents.m file was found for toolbox 'controls'.

ver control

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MATLAB Version: 24.2.0.2754538 (R2024b) Update 1
MATLAB License Number: 40912989
Operating System: Linux 5.15.0-1062-aws #68~20.04.1-Ubuntu SMP Wed May 1 15:24:09 UTC 2024 x86_64
Java Version: Java 1.8.0_292-b10 with AdoptOpenJDK OpenJDK 64-Bit Server VM mixed mode
-------------------------------------------------------------------------------------------------
Control System Toolbox                                Version 24.2        (R2024b)

To check if the tf object from that toolbox is available, ask which.

which tf

/MATLAB/toolbox/control/ctrlmodels/@tf/tf.m  % tf constructor