|Perl Language Reference Manual|
by Larry Wall and others
Paperback (6"x9"), 724 pages
RRP £29.95 ($39.95)
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6 perlnumber: Semantics of numbers and numeric operations
$n = 1234; # decimal integer $n = 0b1110011; # binary integer $n = 01234; # octal integer $n = 0x1234; # hexadecimal integer $n = 12.34e-56; # exponential notation $n = "-12.34e56"; # number specified as a string $n = "1234"; # number specified as a string
This document describes how Perl internally handles numeric values.
Perl's operator overloading facility is completely ignored here. Operator overloading allows user-defined behaviors for numbers, such as operations over arbitrarily large integers, floating points numbers with arbitrary precision, operations over "exotic" numbers such as modular arithmetic or p-adic arithmetic, and so on. See "Package for overloading Perl operations" (overload) in the Perl Library Reference Manual (Volume 1) for details.
|ISBN 9781906966027||Perl Language Reference Manual||See the print edition|