How to invert the index of a vector in Simulink?

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Dani Tormo 2013-5-6

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https://ww2.mathworks.cn/matlabcentral/answers/74823-how-to-invert-the-index-of-a-vector-in-simulink

回答： Ajay Pattassery 2025-12-17，5:30

采纳的回答： Kaustubha Govind

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It is a simple question but I've been looking for a solution without luck!

Let's say I have this vector:

v = [1 2 3]

And I want this:

v = [3 2 1]

Is there any block that makes that?

Thanks!

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Kaustubha Govind 2013-5-6

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If you have the DSP System Toolbox installed, you can use the Flip block to flip the vector horizontally. If you don't have access to this toolbox, simply use the MATLAB Function block to call fliplr instead.

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Dani Tormo 2013-5-7

Thank you both!

Rafael Cordero 2020-6-17

This doesn't work for me. I get the input replicated identically at the output - it's not being flipped.

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Ajay Pattassery 2025-12-17，5:30

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You can use "Math Function" block and select "Function" as "transpose".

This block is available in base MATLAB.

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Signal Processing DSP System Toolbox Signal Generation, Manipulation, and Analysis Signal Attributes and Indexing

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