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Exercise

Sequences and length

The second argument of the function seq is actually a maximum, not necessarily the end. So if we type

seq(7, 50, 7)

we actually get the same vector of integers as if we type

seq(7, 49, 7)

This can be useful because sometimes all we want are sequential numbers that are smaller than some value.

Let's look at an example.

Instructions

100 XP

Create a vector of numbers that starts at 6, does not go beyond 55, and adds numbers in increments of 4/7. So the first three numbers will be 6, 6+4/7, and 6+8/7. How many numbers does the list have? Use only one line of code to answer both questions.