Re: [Haskell-cafe] Set of reals...?
29 Oct
2004
29 Oct
'04
8:31 a.m.
Keith Wansbrough wrote:
Which brings me to a question: is there a better way to write -inf and +inf in Haskell than "-1/0" and "1/0"?
Why not do it with types: data InfDbl = Dbl Double | PositiveInfinity | NegativeInfinity Keean.
29 Oct
29 Oct
8:42 a.m.
New subject: Set of reals...?
Keith Wansbrough wrote:
Which brings me to a question: is there a better way to write -inf and +inf in Haskell than "-1/0" and "1/0"?
Why not do it with types:
data InfDbl = Dbl Double | PositiveInfinity | NegativeInfinity
?
Double already has +Inf and -Inf; it's just that Haskell doesn't have
(AFAIK) syntax to write them as constants.
--KW 8-)
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Keith Wansbrough
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