I've installed Fuzzy Logic Toolbox for Scilab 5.4.1
In Matlab we can write
fuzzy in command line and use that.
How to use Fuzzy GUI editor in Scilab?
For Fuzzy GUI Editor we need to download this Toolbox.
You can download it from here. And then extract it some where like :
And then we need to introduce this Toolbox to Scilab.
Finally you can use below command to use Fuzzy GUI Editor :