Hi everyone,
In the example below I define a macro which chooses at random a name from a
list of names. But I wonder whether this can be done in a more clever way
without using a numerical macro created with math.random in Lua. The
shortcoming of the macro below is that before hand I must know the nomber of
elements in the list of names (for instance 5 in the example below), while it
may happen that I need to create as many as random names that there are
elements in the list, but sometimes I don’t know what is this number.
Thanks for any insight and help.
Best regards: OK
%%%% begin random-names.tex
\setuprandomize[2015] % set a seed
\starttext
\startluacode
Name = {'F', 'G', 'u', 'v', 'W'}
\stopluacode
\define[3]\RandomName{%
\setevalue{Named#1}{\ctxlua{tex.print(math.random(#2,#3))}}}
\define\RandomFunctionName{\ctxlua{tex.print(Name[\NamedFunctionNumber])}}
\dorecurse{10}{\RandomName{FunctionNumber}{1}{5}%
Give an example of a function $\RandomFunctionName : {\Bbb R} \longrightarrow
{\Bbb R}$ which has a derivative only at the origin, and such that
$\RandomFunctionName(0) = 1$.\par \hairline\par}
\stoptext
%%%% begin random-names.tex
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