## Generating math exercises for kids with LuaLaTeX

Arno T. has sent me a nice piece of LuaLaTeX code that does more or less the same thing as my Python code. I guess, I should have a closer look at LuaLaTeX.

\documentclass{scrartcl} \usepackage{booktabs} \usepackage{luacode} \usepackage{longtable}   \begin{document} \begin{longtable}{rcrcl} \toprule \luaexec{ function round(num, idp) local mult = 10^(idp or 0) return math.floor(num * mult + 0.5) / mult end random = math.random tp = tex.print % min = 1 max = 10 math.randomseed(os.time()) for i = 1,20 do a = random(min,max) b = random(min,max) op = random(1,4) if (op==1) then c = a+b tp(a.."&+&"..b.."&=&"..c.."\\\\") elseif (op==2) then c = a-b tp(a.."&-&"..b.."&=&"..c.."\\\\") elseif (op==3) then c = a*b tp(a.."&*&"..b.."&=&"..c.."\\\\") elseif (op==4) then c = a/b tp(a.."&/&"..b.."&=&"..round(c,3).."\\\\") end end tex.print("\\bottomrule") } \end{longtable} \end{document}

### Uwe

Uwe Ziegenhagen likes LaTeX and Python, sometimes even combined. Do you like my content and would like to thank me for it? Consider making a small donation to my local fablab, the Dingfabrik Köln. Details on how to donate can be found here Spenden für die Dingfabrik.