1 "This is already explained partly in 2.15. Any operation like
2 A = A^3/A^2, will yield a different interval than the original A.
4 How do we fix this? One way is to do algebraic reduction of the
5 expression before doing any interval arithmetic.
7 Are there some better ways? I am very interested to hear. The
8 usual literature (wikipedia et al) seem to be mum on these