1.6. Exercises
Normally, each chapter will end with some exercises, with the answers
in Appendix A, "Exercise Answers". But in this chapter, the answers
were already provided.
If you can't get these exercises to work on your machine,
double-check your work and then consult your local expert. Remember
that you may need to change each program a little, as described in
the text.
-
[7] Type in the "Hello, world" program and get it to
work! (You may name it anything you wish, but a good name might be
ex1-1, for simplicity, since it's exercise 1
in Chapter 1, "Introduction".)
-
[5] Type the command perldoc -u -f atan2 at a
command prompt and note its output. If you can't get that to
work, then find out from a local administrator or the documentation
for your version of Perl about how to invoke
perldoc or its equivalent. (You'll need this
for the next exercise anyway.)
-
[6] Type in the second example program (from the previous section)
and see what it prints. (Hint: Be careful to type those punctuation
marks exactly as shown!) Do you see how it changed the output of the
command?
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