role Rational
src
role Rational[::NuT, ::DenomT] does Real { ... }
Rational is the common role for numbers that are stored as pairs of
numerator and denominator. It is parameterized by the types of the numerator
and denominator.
Built into Perl 6 are L<Rat> and L<FatRat>, which both do the Rational role.
methods
new
method new(NuT:D $numerator, DenomT:D $denominator) returns Rational:D
Creates a new rational object from numerator and denominator.
numerator
method numerator(Rational:D:) returns NuT:D
Returns the numerator.
denominator
method denominator(Rational:D:) returns DenomT:D
Returns the denominator.
nude
method nude(Rational:D:) returns Positional
Returns a list of the numerator and denominator.
norm
method norm(Rational:D:) returns Rational:D
Returns a normalized Rational object, ie with positive denominator, and
numerator and denominator coprime.
