Where can I find fcn block in matlab R2020b?

I just downloaded matlab version 2020b and started simulink.

However I just can't find that fcn block.

Where is it in matlab version 2020b? and what is that block's name?

[Swagata Chakraborty]

As in MATLAB 2021a version Fcn block is removed than which block is more suitable in its place...please let me know.

[Walter Roberson]

@Swagata Chakraborty

Use the MATLAB Function Block

[Monte]

What gets put into the "Matlab Function Block", y = f(x), in order to convert a continuously ramping "x" to a "y" that

ramps from 0 to 2pi and resets to 0 and rises again.

[Walter Roberson]

@Monte

https://www.mathworks.com/help/sps/powersys/ref/sawtoothgenerator.html maybe?

Otherwise,

y = mod(x, 2*pi);

Answer 1

[Ameer Hamza]

From the documentation, it appears that the block has been removed from R2020b: https://www.mathworks.com/help/simulink/ref_obsolete_blocks/fcn.html. It has been depreciated for several past releases. Use the MATLAB function block: https://www.mathworks.com/help/simulink/slref/matlabfunction.html, which is much more flexible and easy to use.

[Da Yeon Seo]

Thanks a lot!

[Ameer Hamza]

I am glad to be of help!!!

[Allan Moser]

Using the MATLAB function block instead of the fcn block caused the Simulink model to run much, much slower.

[Run Janna]

thank you.

[Bhautik Gondaliya]

Thank you

[Bálint Levente Tarcsay]

Personal opinion: The MATLAB Function block is much worse than the original Fcn block.

You can't insert time independent parameters from a MATLAB workspace into it directly, you have to load them as constants and insert them into the funciton as inputs. This clutters up the simulink model considerably and adds extra steps to basic tasks such as calling a simple function.

[Fermín Bello]

It's worse, actually

[Walter Roberson]

@Bálint Levente Tarcsay

I suggest you have a look at https://www.mathworks.com/matlabcentral/answers/1653710-global-variable-in-simulink#comment_2009495 where I show how to construct Simulink global variables and parameter objects at the MATLAB level.

[Fahed Daoud]

Thanks bro thats was helpful .

[Charper]

Updated link since the original is broken:

https://www.mathworks.com/help/simulink/release-notes.html?startrelease=R2019b&endrelease=R2020b&rntext=fcn&groupby=release&sortby=descending&searchHighlight=fcn#mw_1455ab66-8c8e-40e3-bb71-4cef5cd25311

Answer 2

[Siamak Lotfi]

thanks

Answer 3

[elkhalifa]

thank you