On Saturday 12 January 2002 17:35, you wrote:
(I'm just a new convertee to the ways of Functional Programming, so please go easy on me! ^_^;;)
Welcome. Hope you find it as fun and useful as I.
Why is it that `Double's in Hugs only seem to have the same precision as a `Float'? I've some code here that only iterates a few hundred times, and the amount of accuracy lost is getting a bit ridiculous ...
As the Hugs manual says in 9.1, The Double type is implemented as a single precision float (this isn't forbidden by the standard but it is unusual). But if you build Hugs yourself, there's a line in options.h /* Define if you want to use double precision floating point arithmetic */ #define USE_DOUBLE_PRECISION 0
From a bit of browsing the code, it appears that setting USE_DOUBLE_PRECISION will increase the precision of both Float and Double types.
BTW: From the description at http://haskell.cs.yale.edu/communities/ , I seem to get the impression that haskell@haskell.org should only be used for announcements, yet the archive shows quite a bit of general discussion going on. Should I have posted this to the aforementioned list as well / instead?
Haskell-cafe is fine for your question. For a description of the way the mailing lists are split, I'd recommend http://www.haskell.org/mailinglist.html.