I am trying to escape from writing by hand a long number of similar lines like
Bet1 = 0;
Bet2 = 0;
...
Bet100 = 0;

using the equivalent of

for i=1 to 100
Beti = 0
next

or

for i=1 to 100
Bet(i) = 0
next

any proposal?

Thanks

What are yo trying to achieve?

What are yo trying to achieve?

too long to explain here but trying to avoid to write by hand too many line of code, for example for the following

B13  = B12
B12  = B11
B11  = B10
B10  = B9
B9   = B8
B8   = B7
B7   = B6
B6   = B5
B5   = B4
B4   = B3
B3   = B2
B2   = B1

It's impossible to give you a solution without knowing what you're trying to do with your script. It's quite possible that a simple sum, multiplication and/or modulu can solve your problem.

The best answer I can give now, without context, is to look into arrays and for loops.
https://www.lua.org/pil/11.1.html

thanks you for the link, I did not know it was called array.

I tried the simplest one

b = {}
    for i = 1,200 do
        b[ i ] = 1
    end
  and I receives the following error in the console : Attempt to compare with nil ??

Tks