[NTG-context] Re: Question about building an array of values with Lua

24 Aug 2023


      Otared Kavian schrieb am 24.08.2023 um 12:50:
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On 24 Aug 2023, at 06:03, Wolfgang Schuster 
mailto:wolfgang.schuster.lists@gmail.com> wrote:
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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