Hi, I improved the code to be able to display the grid but I cannot display the coefficients. Thank you Fabrice \starttext \startluacode function Binom(n,k) if k > n then return 0 elseif (n == 0 or k == 0) then return 1 else return (n*Binom(n-1,k-1))/k end end context.startxtable({"align={middle,lohi}, width=1.2cm,offset=0.8ex,bodyfont=9pt"}) for i = 1, 10 do context.startxrow({"background=color,backgroundcolor=cyan"}) for j = 1, i do context.startxcell() \ctxlua{context(Binom(i,j))} context.stopxcell() end context.stopxrow() end context.stopxtable() \stopluacode \stoptext Le sam. 18 juil. 2020 à 20:32, Wolfgang Schuster < wolfgang.schuster.lists@gmail.com> a écrit :

Fabrice Couvreur schrieb am 18.07.2020 um 20:05:

Hello, I want to display the values of Pascal's triangle in a table. Unfortunately my knowledge of Lua is not sufficient to run this code. Thank you. Fabrice

\starttext

\startluacode function Binom(n,k) if k > n then return 0 elseif (n == 0 or k == 0) then return 1 else return (n*Binom(n-1,k-1))/k end context(Binom(n,k))

Are you sure you want to use context(...) here?

end

context.startxtable({"align={middle,lohi}, width=1.2cm,offset=0.8ex,bodyfont=9pt"}) context.startxrow({"background=color,backgroundcolor=green"}) for i = 0, 10 do for j = 0, i do context.startxcell() context(Binom(i,j)) context.stopxcell() end end context.stopxrow()

context.stopxtable()

Wolfgang

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Hi Wolfgang, It works but why did you ask this question since I finally use context ?

Are you sure you want to use context(...) here?

How not to display the .0 ? Fabrice Le sam. 18 juil. 2020 à 22:22, Wolfgang Schuster < wolfgang.schuster.lists@gmail.com> a écrit :

Fabrice Couvreur schrieb am 18.07.2020 um 22:09:

...

Hi, I improved the code to be able to display the grid but I cannot display the coefficients. Thank you Fabrice

\starttext

\startluacode function Binom(n,k) if k > n then return 0 elseif (n == 0 or k == 0) then return 1 else return (n*Binom(n-1,k-1))/k end

end

context.startxtable({"align={middle,lohi}, width=1.2cm,offset=0.8ex,bodyfont=9pt"}) for i = 1, 10 do context.startxrow({"background=color,backgroundcolor=cyan"}) for j = 1, i do context.startxcell() \ctxlua{context(Binom(i,j))}

Remove \ctxlua:

context(Binom(i,j))

Wolfgang

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Fabrice Couvreur schrieb am 18.07.2020 um 22:25:

Hi Wolfgang,

It works but why did you ask this question since I finally use context ?

Are you sure you want to use context(...) here?

In your first version you used the context function in the loop to print the output of the Binom but the Binom function used context as well, this could result in context(context(...)).

How not to display the .0 ?

Format the content of the context function to show only integer values, e.g. context("%d",Binom(...)). For more information search for formatter in cld-mkiv.pdf. Wolfgang

On 18 Jul 2020, at 23:35, Otared Kavian wrote:

...

On 18 Jul 2020, at 22:25, Fabrice Couvreur wrote:

Hi Wolfgang,

It works but why did you ask this question since I finally use context ? Are you sure you want to use context(...) here? How not to display the .0 ?

Or even better, you can return an integer in your Binom function: return math.round((n*Binom(n-1,k-1))/k) Best regards: Otared