##### Examples of Interpolation

Let us consider an example that uses a few of these characters:

```     #!/usr/bin/perl

use strict;
use warnings;

print "A backslash: \\\n";
print "Tab follows:\tover here\n";
print "Ring! \a\n";
```     A backslash: \
In addition, when running, you should hear the computer beep. That is the output of the `\a` character, which you cannot see on the screen. However, you should be able to hear it.
Notice that the `\n` character ends a line. `\n` should always be used to end a line. Those students familiar with the C language will be used to using this sequence to mean newline. When writing Perl, the word newline and the `\n` character are roughly synonymous.