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Proper way to define port dimensions in SIMULINK

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What is the proper way to define port dimensions in SIMULINK?
I used to define them as:
Port dimensions (-1 for inherited):
  • 4
But then I see that some people use:
  • [4x1]
The default in SIMULINK is vector, so when you connect an output of the form [4x1] with an input of 4, there is no error, but SIMULINK clearly shows a diference on the signal names, it recognizes one is [4x1] and the other 4. Is there any difference between the two methods, anything I should worry about?
  1 Comment
Sadiq Shaik Abdul
Sadiq Shaik Abdul on 15 Apr 2021
https://www.mathworks.com/matlabcentral/answers/386679-what-is-the-difference-between-a-scalar-n-and-a-vector-1-n-when-specifying-simulink-signal-size-or?s_tid=answers_rc1-1_p1_Topic

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