(This article was first published on

**R/exams**, and kindly contributed to R-bloggers)Exercise template for assessing the interpretation of an automaton diagram (drawn with TikZ) based on randomly generated input sequences.

**Name:**

`automaton`

**Type:**

**Related:**

**Description:**

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.

**Solution feedback:**

Yes

**Randomization:**

Random numbers, text blocks, and graphics

**Mathematical notation:**

No

**Verbatim R input/output:**

No

**Images:**

Yes

**Other supplements:**

No

**Demo code:**

```
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")
```

To

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