perl6/doc/lib/FatRat

(title)  class FatRat 

    class FatRat is Cool does Rational[Int, Int]

 

A FatRat is a rational number stored with arbitrary size numerator and denominator. Arithmetic operations involving a FatRat and optionally L<Int> or L<Rat> objects return a FatRat , avoiding loss of precision. Since, unlike L<Rat>, FatRat arithmetics do not fall back L<Num> at some point, there is a risk that repeated arithmetic operations generate pathologically large numerators and denominators. There are two common ways to generate FatRat objects: through the FatRat.new(Int, Int) constructor, which generates them from numerator and denominator, or by calling the .FatRat method on an L<Int> or L<Rat> object.