# [NTG-context] Randomize order of blocks

Jairo A. del Rio jairoadelrio6 at gmail.com
Thu Jan 7 02:36:08 CET 2021

Nice. I had something a little bit different in mind, but your examples
gave me some ideas, especially the shuffling stuff. If I have something new
to add, I will share my results with the list. Thank you a lot.

Best regards,

Jairo

El mié, 6 de ene. de 2021 a la(s) 03:56, Otared Kavian (otared at gmail.com)
escribió:

> Following up my previous message, here is an example:
>
> %% begin shuffled list of exercises
> \setuprandomize[2021]
>
> \startluacode
>         function shuffle(tableau)
>                 local maxsize, t, tt
>                 maxsize = #tableau
>                 tt = {}
>                 t = {}
>                 for i = 1, maxsize do
>                         t[i] = {}
>                         t[i]["columnOne"] = tableau[i]
>                         t[i]["columnTwo"] = math.random(1,100*maxsize)
>                 end
>                 table.sort(t, function(a,b) return a.columnTwo <
> b.columnTwo end)
>                 for i = 1, maxsize do
>                         tt[i] = t[i]["columnOne"]
>                 end
>                 return tt
>         end
> \stopluacode
>
> % We define three arrays
> % with the names, the functions and their derivatives
> % One could also add a ListOfVariables...
>
> \startluacode
>
>         ListOfNames = {
>                 "f",
>                 "g",
>                 "h",
>                 "u",
>                 "v",
>                 "F",
>                 "G",
>                 "H",
>         }
>
>         ListOfFunctions = {
>                 "\\cos(x^2)",
>                 "x\\sin(x)",
>                 "\\tan(x)",
>                 "x^3 - 3x^2 + 1",
>                 "\\frac{1}{1 + x^2}",
>                 "\\sin(\\log(x))",
>                 }
>
>         ListOfDerivatives = {
>                 "-2x\\sin(x^2)",
>                 "x\\cos(x) + \\sin(x)",
>                 "1 + \\tan(x)^2",
>                 "3x^2 - 6x",
>                 "\\frac{-2x}{(1 + x^2)^2}",
>                 "\\frac{\\cos(\\log(x))}{x}",
>                 }
>
> \stopluacode
>
> \starttext
>
> % We define a buffer and a shuffled list of integers
>
> \startbuffer[test-derivatives]
> \startluacode
>         ShuffledList = shuffle({1,2,3,4,5,6})
> \stopluacode
>
> Let $\cldcontext{ListOfNames[ShuffledList[\recurselevel]]}(x) := > \cldcontext{ListOfFunctions[ShuffledList[\recurselevel]]}$. Prove that
> \startformula
> \cldcontext{ListOfNames[ShuffledList[\recurselevel]]}'(x) =
> \cldcontext{ListOfDerivatives[ShuffledList[\recurselevel]]}
> \stopformula
> \stopbuffer
>
> \dorecurse{6}{\blank[medium]{\bf Exercise #1.}
>         \getbuffer[test-derivatives]
>         }
>
> \stoptext
>
> %% end shuffled list of exercises
>
>
> > On 6 Jan 2021, at 09:41, Otared Kavian <otared at gmail.com> wrote:
> >
> > Hi Jairo,
> >
> > One can indeed make quizzes and exams with randomized order of problems,
> randomized values and even randomized names of functions and variables.
> > I have some examples which I have been using for several years (they are
> useful especially in these days of giving exams online…): I can send them
> to you as they are, or if you tell me what kind of problems you want, then
> I can adapt my examples before sending them to you.
> >
> > Best regards: Otared
> >
> >> On 5 Jan 2021, at 17:18, Jairo A. del Rio <jairoadelrio6 at gmail.com>
> wrote:
> >>
> >> Hi, list.
> >>
> >> Some time ago I realized ConTeXt has "blocks" which allow one to make
> quizzes, exams and related with ease. However, I want to know if there's an
> option to randomize their order when printed. Thank you in advance.
> >>
> >> Jairo
> >>
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> >
>
>
> ___________________________________________________________________________________
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>
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