I created my first simple extension (for testing). 
I have seen this extension: [Extension] Math Formulas [V3]
I used the Extension Template Repository: Extension Template Repository
(of course, not a big deal, but for the first time)
de.BodyMindPower.quadraticEquation.aix (5.6 KB)
UPDATE v2: de.BodyMindPower.quadraticEquation_v2.aix (5.7 KB)
I have simplified the extension following @vishwas advice:
Congratulations Anke! I have tested the extension and it works !
Congratulations!
Nice Work !!
which programing language used to create extension ?
They are made with Java
I would love to see the source code.
Can it be posted here as a snippet, or
do we have to be lowered on a rope into a Framework to see it, like a cave painting?
Can you share source code , Please.
Can you please help me how to use it in app inventor?
I have tried many versions but non of them works...
it looks like you are using one of the advanced blocks (which has a "for component socket), which does not make sense... just use the normal blocks from the extension drawer directly...
Taifun
The interesting thing is that the same extension looks different in AI vs Kodular and my project is in AI.
In AI it looks like this:
In Kodular it look like this:
As already said earlier...
You found the extension in the Any component drawer... you might want to close that drawer...
What do you get, if you expand the Screen1 drawer? Do you see the + sign next to Screen1?
Taifun
