Fundamentals of Perl
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Chapter 5. Scalars

A single piece of data either a number or a string is called a 'scalar' in Perl.

5.1. Numbers - integers, real or floating-point

integer (decimal)

26
1_234_567_890

integer (hex/oct/binary)

0x1a            # hex     also written as    hex("1a");
032             # oct     also written as    oct("32");
0b11010         # binary  also written as    oct("0b11010");
                # all 3 equal to 26 decimal

real or floating-point

3.5e+3          # 3500

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Exercise: Hello world		Scalar variables (use my)

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