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Exercise 3: R numeric calculations

Find a function FUN that leads to the following output:

FUN(pi) - FUN(exp(1))
## [1] 1

Hint: aim to keep the answer simple. The main logic of the function can often be summarized in a single line of R code.

Answer: click to reveal

We can write the function as follows:

  FUN <- function(x) {

The R function floor returns the largest integer not greater than the input argument:

  ## [1] 3.141593
  ## [1] 3
  ## [1] 2.718282
  ## [1] 2

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