(This article was first published on

**R/exams**, and kindly contributed to R-bloggers)Exercise template for matching logic gate diagrams (drawn with TikZ) to the corresponding truth table.

**Name:**

`logic`

**Type:**

**Related:**

**Description:**

Gate diagrams for three logical operators (sampled from: and, or, xor, nand, nor) are drawn with TikZ and have to be matched to a truth table for another randomly drawn logical operator. Depending on the exams2xyz() interface the TikZ graphic can be rendered in PNG, SVG, or directly by LaTeX.

**Solution feedback:**

Yes

**Randomization:**

Shuffling, 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("logic.Rnw")
set.seed(1090)
exams2pdf("logic.Rnw")
set.seed(1090)
exams2html("logic.Rmd")
set.seed(1090)
exams2pdf("logic.Rmd")
```

To

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