Error for Gain block in Simulink

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Christo van Rensburg
Christo van Rensburg on 15 Jul 2020
Commented: Mathieu NOE on 8 Jan 2021
Hi there, I'm getting the following error when I try to type "1/(Ih+Ib)" into the parameter value of the Gain block in Simulink.
Both Ih and Ib are defined constants in the MATLAB workspace.
The error is: "Invalid setting in '.../Gain' for parameter 'Gain'."
Any advice on why this is not working. Seems like a simple thing that should not be a problem.
Thanks
  3 Comments
Mathieu NOE
Mathieu NOE on 8 Jan 2021
hi
why not define directly in the workspace :
gain =1/(Ih+Ib)
and use that "gain" in the simulink gain block parameter

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