Rat is a type (a 'class'). It is also a method on class Numeric. You can take anything Numeric, and call .Rat() on it to get an equivalent Rat (well, within $epsilon)
You can't, for example, say my Rat $x = pi; Since pi is not rational -- it won't fit in that box. You can, however, ask pi to turn itself into a Rat (or something pretty close), then it will fit. my Rat $x = pi.Rat; On Sun, Sep 16, 2018 at 10:29 PM ToddAndMargo <toddandma...@zoho.com> wrote: > Hi All, > > What in the world are they trying to say here? > > https://docs.perl6.org/routine/Rat > (Numeric) method Rat > > method Rat(Numeric:D: Real $epsilon = 1.0e-6 --> Rat:D) > > If this Numeric is equivalent to a Real, return a Rat which > is within $epsilon of that Real's value. Fail > with X::Numeric::Real otherwise. > > And is this why I can not find a type "Rat"? Because > it is a method? > > Then why does > $ p6 'my Real $x; $x = 3.1415; dd $x;' > Rat $x = 3.1415 > say it is a type "Rat"? > > > Yours in confusion, > -T >
