An automaton diagram with four states A-D is drawn with TikZ and is to be interpreted, where A is always the initial state and one state is randomly picked as the accepting state. Five binary 0/1 input sequences acceptance have to be assessed with approximately a quarter of all sequences being accepted. Depending on the exams2xyz() interface the TikZ graphic can be rendered in PNG, SVG, or directly by LaTeX.
Random numbers, text blocks, and graphics
Verbatim R input/output:
library("exams") set.seed(1090) exams2html("automaton.Rnw") set.seed(1090) exams2pdf("automaton.Rnw") set.seed(1090) exams2html("automaton.Rmd") set.seed(1090) exams2pdf("automaton.Rmd")