RE: readFloat

| Especially converting rationals to a string and back should | always be the identity. It would be better to print rationals in the | form | numerator % denominator | | and read them in the same form. Oh yes, that is absolutely what Haskell does for Rationals. The 'read' and 'show' for Rational uses the % notation. No proposed change here. The point is instead this: if you specifically want to read a Rational from a string like "3.24", which is perfectly reasonable (324 % 100), then the same function (readFloat) should do it as read a Float from the string in that format. That's what type-class overloading is for. Simon