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what is block arguments about handle meaing?

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mr. wang
mr. wang on 23 Mar 2017
Closed: MATLAB Answer Bot on 20 Aug 2021
bb=get_param('test/Gain','handle')
when i run this program,it returns bb=9.0002,what does that mean?

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Monika Jaskolka
Monika Jaskolka on 28 Mar 2020
Edited: Monika Jaskolka on 28 Mar 2020
Each block, line, annotation, etc. in a Simulink model has a unique numeric identifier. It's called a "handle". You can use the handle to refer to that specific block, for example:
set_param(bb, 'Gain', '2')

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