Differences between version 9 and predecessor to the previous major change of Haskell.
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| Newer page: | version 9 | Last edited on Sunday, March 7, 2004 9:26:57 am | by AristotlePagaltzis | Revert |
| Older page: | version 7 | Last edited on Saturday, September 13, 2003 1:08:00 pm | by GerwinVanDeSteeg | Revert |
@@ -1,15 +1,7 @@
-Haskell is another one of those functional programming languages. To quote [
http://www.haskell.org], "In particular, it
is a polymorphicly typed, lazy, purely
functional language"
.
+[
Haskell |
http://www.haskell.org] is pure
functional programming
language that employs LazyEvaluation and supports generic or PolymorphicTypes
.
-Everything is a function in Haskell. Everything. If you are used to languages like [C] or [Java], Haskell can be quite hard to learn. %%%
-''Although it will be an eye-opener, problems that seemed terribly difficult in C will suddenly become easy to solve -- GlynWebster''%%%
-''On the flipside, things that are easy in C (eg: I/O) suddenly become very hard to solve in Haskell :) -- PerryLorier''
-
-does have
some quite
cool concepts though. One in particular is
the dot .
operator. If you remember your calculus, you use
the . for functional composition: so does Haskell! This allows you to do something similar to the pipe operator used in shell scripting.
-
-It also does stuff like LazyEvaluation, supports generic or PolymorphicTypes, and is 'purely functional' -- this means you can even do mathematical proof on your programs.
-
-See [http://www.haskell.org] for more info
.
+It has
some cool concepts like
the dot operator. If you remember your calculus, it used
the . for functional composition: so does [
Haskell]
! This allows you to do something similar to the pipe operator used in shell scripting.
!!!Example
-- sieve: prints the number of prime numbers between 2 and 100000
@@ -21,13 +13,12 @@
main = (putStrLn . show . length . sieve) [[2..100000]
!!!Implementations
-__
HUGS__ -
__H__askell __U__sers' __G__ofer[1] __S__ystem. An interpreter for Haskell. This is
good for playing around learning Haskell (which is what you do with Haskell, unless you're serious computer scientist). See:
http://haskell.org/hugs
-
-__GHC__ -
__G__lasglow __H__askell __C__ompiler. A big, optimising compiler for Haskell. See: http://www.haskell.org/ghc/
+; [
HUGS | http://haskell.org/hugs] :
__H__askell __U__sers' __G__ofer[1] __S__ystem. An interpreter that's
good for playing around learning [
Haskell]
(which is what you do with [
Haskell]
, unless you're serious computer scientist).
+; [GHC |
http://www.
haskell.org/ghc/] :
__G__lasglow __H__askell __C__ompiler. A big, optimising compiler for Haskell.
----
[1] Gofer was a subset of Haskell, HUGS now implements full Haskell.
-----
-CategoryProgrammingLanguages
+CategoryProgrammingLanguages, CategoryFunctionalProgrammingLanguages
