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Published in:
2010 | OriginalPaper | Chapter
Scalars
Published in: Beginning Perl
Publisher: Apress
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The essence of programming is computation—we want the computer to do some work with the input (the data we give it). Very rarely do we write programs to tell us something we already know. Even more rarely do we write programs to do nothing at all interesting with our data. So, if we’re going to write programs that do more than say hello to us, we’re going to need to know how to perform computations—operations on our data.