13 May
2006
13 May
'06
1:32 a.m.
Le Mercredi 29 Mars 2006 10:22, nicolas cellier a écrit :
I am not totally opposed to more radical solution you seem suggesting: (2 = 2.0) never answer true. In this case, we can still have efficient hash for comparing (2.0=2.0), and do not have to bother with Integer and Fraction.
I must answer no to myself because nobody did:
As we won't have neither (2>2.0) nor (2<2.0), if we do not have (2=2.0), then that means that Numbers are unordered... Something i dislike and would not vote for.
True, 2.0 might be inexact, maybe it is 1.9999, maybe 2.0001, but if i want such behaviour, i would rather use interval arithmetic 2.0+/- 0.0001. Such intervals cannot be fully ordered.
Nicolas