Is the number of usable variables in a function limited?

[Neuron]

Do functions defined before the main one have a limitation on the number of variables which can be used inside it?

I created a function with 13 variables and it doesn't work. The program accepts the function but not using it with 13 variables in any way. I checked everything a few times and although the syntax is correct, the game doesn't accept 13 variables in a function defined before the main one.

Do you know if there's a limit to the number of variables which can be used in a custom-defined function?

LE. To be clear: the game accepts having a 13-variable function defined before the main one, but not using it in the main function.

[pftq]

If you mean number of arguments to a function, I think I've also hit a limit at some point.  You can always go around this by declaring global variables instead though or just breaking it up to multiple functions.