Now let's write some code that actually executes something:
1 + 22 + 5 * 43 ^ 4sqrt(81)pi
This code first evaluates three mathematical expressions using the basic operators. As you might expect, R evaluates the expressions using the mathematical operator precedence. The code calls the sqrt() function to calculate and checks the value of the constant for the number pi (π). The base R installation, or the base package, has many built-in constants. You can search the help for all pages that mention constants with ??"constants".
There are many ways to generate sequences of numbers, as you can see from the following code:
rep(1, 5)4:8seq(4, 8)seq(4, 20, by = 3)
The first command replicates the number 1 five ...
