Floating point numbers

Question

Why do floating point numbers behave so strange? Why is

Prelude> compare (0/0) (0/0)
GT
Prelude> (0/0) > (0/0)
False

?

Answer

This has nothing to do with Haskell, but exclusively with the underlying implementation of floating point numbers in your system.

See for instance:

• Haskell-Cafe on 0/0 > 1 == False
• Haskell-Cafe on Why purely in haskell?