ComplexPair should be just Complex in rationa.j.

j/rational.j

@@ -18,10 +18,10 @@ Rational(n::Int) = Rational(n, one(n))
 //(n::Int, d::Int) = Rational(n,d)
 //(x::Rational, y::Int) = x.num // (x.den*y)
 //(x::Int, y::Rational) = (x*y.den) // y.num
-//(x::ComplexPair, y::Real) = complex(real(x)//y, imag(x)//y)
-//(x::Real, y::ComplexPair) = x*y'//real(y*y')
+//(x::Complex, y::Real) = complex(real(x)//y, imag(x)//y)
+//(x::Real, y::Complex) = x*y'//real(y*y')
 
-function //(x::ComplexPair, y::ComplexPair)
+function //(x::Complex, y::Complex)
  xy = x*y'
  yy = real(y*y')
  complex(real(xy)//yy, imag(xy)//yy)