freeCodeCamp/guide/english/miscellaneous/learn-about-ruby-numbers/index.md

title

title
Learn About Ruby Numbers

Basics:

• Ruby has two categories of numbers - integers and floating-point (also called floats).
• Integers are whole numbers that can be positive or negative but cannot be fractions.
• Depending on their size, integers can have the class Fixnum or Bignum.
• Floats are numbers with a decimal place.

Examples:

x = 5.5
x.class
# returns
Float

x = 5
x.class
# returns
Fixnum

x = 11122233344455566677
x.class
# returns
Bignum # basically, Bignum is a very large number
# <a href='http://ruby-doc.org/core-2.0.0/Bignum.html' target='_blank' rel='nofollow'>read this article for more info</a>

References:

• The official Ruby documentation for integers.
• The official Ruby documentation for floats.