November 2001
Intermediate to advanced
218 pages
6h 22m
English
Content preview from Ruby in a NutshellBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Numbers
Strings and numbers are the bread and
butter of literals. Ruby provides support for both integers and
floating-point numbers, using classes Fixnum,
Bignum, and Float.
Integers
Integers are instances of class
Fixnum or Bignum:
123 # decimal 1_234 # decimal with underline 0377 # octal 0xff # hexadecimal 0b1011 # binary ?a # character code for 'a' 12345678901234567890 # Bignum: an integer of infinite length
Floating-point numbers
Floating-point numbers are instances of class
Float:
123.4 # floating point value 1.0e6 # scientific notation 4E20 # dot not required 4e+20 # sign before exponential
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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