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Rational implements a rational class for numbers.

A rational number is a number that can be expressed as a fraction p/q where p and q are integers and q != 0. A rational number p/q is said to have numerator p and denominator q. Numbers that are not rational are called irrational numbers. (http://mathworld.wolfram.com/RationalNumber.html)

To create a Rational Number:

Rational(a,b)             # -> a/b
Rational.new!(a,b)        # -> a/b

Examples:

Rational(5,6)             # -> 5/6
Rational(5)               # -> 5/1

Rational numbers are reduced to their lowest terms:

Rational(6,10)            # -> 3/5

But not if you use the unusual method “new!”:

Rational.new!(6,10)       # -> 6/10

Division by zero is obviously not allowed:

Rational(3,0)             # -> ZeroDivisionError

Aliases

  • **

Constants

Unify = true

Attributes

[R] denominator
[R] numerator
Show files where this class is defined (2 files)
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