Otared Kavian schrieb am 24.08.2023 um 12:50:
>
>> On 24 Aug 2023, at 06:03, Wolfgang Schuster 
>> <wolfgang.schuster.lists@gmail.com 
>> <mailto:wolfgang.schuster.lists@gmail.com>> wrote:
>>> […]
>>
>> I would drop the column check in this case.
>>
>>     for i = 0,9 do
>>         context.startxrow()
>>             context.startxcell()
>>                 context(i)
>>             context.stopxcell()
>>             context.startxcell()
>>                 context(math.mod(i*i,10))
>>             context.stopxcell()
>>             context.startxcell()
>>                 context(i)
>>             context.stopxcell()
>>             context.startxcell()
>>                 context(math.mod(2*i*i,10))
>>             context.stopxcell()
>>         context.stopxrow()
>>     end
>>
>> Wolfgang
>
> Indeed this is much more elegant… It feels so good to be on this list 
> and learn from such insights :-)

We don't even need the math.mod function because Lua added with version 
5.1 a modulo operator,
the loop to create the row can now be changed to

     for i = 0,9 do
         context.startxrow()
             context.startxcell()
                 context(i)
             context.stopxcell()
             context.startxcell()
                 context(i * i % 10)
             context.stopxcell()
             context.startxcell()
                 context(i)
             context.stopxcell()
             context.startxcell()
                 context(2 * i * i % 10)
             context.stopxcell()
         context.stopxrow()
     end

Wolfgang