Hi,
I have a rather naive question, being new to Haskell.
I am looking at the Hawk Signal module, where the following definition
occurs:
lift1 f (List xs) = List $ lazyMap f xs
where
lazyMap f ~(x:xs) = f x : lazyMap f xs
Now setting aside how the function is used in Hawk, I ran a l
[Apologies for multiple copies]
IFIP TCS2000 PRELIMINARY PROGRAM AND REGISTRATION INFORMATION
^
--
IFIP International Conference on Theoretical Computer Science
Hi folks!
Where can I find math libraries with functions for differential and
integration calculus, statistics, lin. algebra, ...?
Regards Sebastian
--
| Sebastian Schulz
Ma
Wed, 19 Apr 2000 10:19:08 +0400 (MSD), S.D.Mechveliani <[EMAIL PROTECTED]> pisze:
> I have an impression that Haskell-98 calls `Integral' various models
> for the domain of integer numbers. And this is for Haskell-98'.
> While the good standard of future (I hope for Haskell-2) has, to my
> min
No. It is all right.
For example, gcdExt 4 6 = (2,-1,1),so -1*4 + 1*6 = 2 = gcd 4 6.
Maybe, you forgot of negatives?
--
Sergey Mechveliani
[EMAIL PROTECTED]
| Many of you have run across the problem with
| newtypes that, although it is very cheap to
| coerce between the newtype and the base type, it
| can be very expensive to coerce between, say,
| a list of the newtype and a list of the base type.
| Stephanie Weirich and I are working on a proposal
|
George Russell ([EMAIL PROTECTED]) wrote:
[...]
: Sorry I can't be more helpful. But there is unlikely to be a simple
: answer to the question "Does LIP or GMP multiply numbers fastest?";
: it will depend on how big the numbers are, what platform you are using,
: and how much difficult the int
George Russell wrote:
> (GMP is faster if
> you use the mpn_ functions, but then you have to do all your own
> allocation and only get non-negative integers.)
Sorry, I meant GMP is faster if you use mpn_ than if you use the other
GMP functions, not that the mpn_ functions are faster than LIP.
Marc van Dongen wrote:
> Do you have any data about comparisons with this or
> other packages?
I've just looked around Dave Rusin's page:
http://www.math.niu.edu/~rusin/known-math/index/11YXX.html
but it doesn't seem to contain any up-to-date comparisons; in
particular not of GMP 3. There are
George Russell ([EMAIL PROTECTED]) wrote:
: I agree actually. Integer only needs to be an implementation of
: multiprecision arithmetic; we shouldn't tie it to GMP. There are
: other multiprecision arithmetic packages out there, for example
But it is pretty fast.
: the LIP package included in
Mark P Jones wrote:
> I guess that H/Direct would be the best way to take advantage of these
> right now.
I agree actually. Integer only needs to be an implementation of
multiprecision arithmetic; we shouldn't tie it to GMP. There are
other multiprecision arithmetic packages out there, for examp
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