Talk:Blow your mind: Difference between revisions

Revision as of 15:45, 28 December 2006

Could these be on their own page?

Hi Johannes - Great stuff on your page. Have you thought about making it an actual page in the WIKI? You could then add

[[Category:Idioms]]

and more people would find it. BrettGiles 16:19, 1 March 2006 (UTC)

Name?

Is there a better name for this page? —Ashley Y 00:55, 2 March 2006 (UTC)

i completely agree, the name pretty much sucks. but what i really wanted, was to compile a collection of "idioms" that would enlarge the readers perception of what is possible in Haskell and how to go about it. so, i'll have to find a name that reflects this plan. —--Johannes Ahlmann 14:13, 2 March 2006 (UTC)

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 i completely agree, the name pretty much sucks. but what i really wanted, was to compile a collection of "idioms" that would enlarge the readers perception of what is possible in Haskell and how to go about it. so, i'll have to find a name  that reflects this plan. &mdash;--[[User:JohannesAhlmann|Johannes Ahlmann]] 14:13, 2 March 2006 (UTC)
-== Elegance before pyrotechnics ==
-The polynomial algorithms are indeed mind-blowing, like the excess of Mardi Gras. They smuggle in subscripts, which (blessedly) Haskell usually banishes, disguised in a pyrotechnic display of abstraction, replication, concatenation, composition and enumeration.
-Gilles Kahn invented a much more docile and beautiful way to do these things with true Haskell elegance long before Haskell:
-  instance Num a => [a] where
-    fs + [] = fs
-    [] + gs = gs
-    (f:fs) + (g:gs) = f+g : fs+gs
-    (f:fs) * (g:gs) = f*g : [f]*gs + fs*(g:gs)
-    _ * _ = []
-Unlike the mind-blowing version, this code works on infinite series as well as polynomials. &mdash;[[User:dougm:Doug McIlroy]] 20 December 2006
-As can be easily seen from the history, i didn't add the polynomial code and haven't reviewed it due to its "length". This is a wiki; make any changes you think improve the page. Much of my own stuff needs comments or is generally obscure. I'd love it if someone added/removed/altered a few examples to make this page more "user friendly" --[[User:JohannesAhlmann|Johannes Ahlmann]] 22:44, 20 December 2006 (UTC)