+(a)
public
Returns the addition of this value and a.
Examples:
r = Rational(3,4)
r + 1
r + 0.5
Show source
def + (a)
if a.kind_of?(Rational)
num = @numerator * a.denominator
num_a = a.numerator * @denominator
Rational(num + num_a, @denominator * a.denominator)
elsif a.kind_of?(Integer)
self + Rational.new!(a, 1)
elsif a.kind_of?(Float)
Float(self) + a
else
x, y = a.coerce(self)
x + y
end
end