Why is the behavior of the Haskell range notation different for floats than for integers and chars? Prelude> [1, 3 .. 10] :: [Int]
I have a type class IntegerAsType a where value :: a -> Integer data T5 instance IntegerAsType T5 where value _ = 5
Are there any good implementations of spatial indexes in Haskell such as R-tree, kd-tree,开发者_如何学Python etc...The only implementations I\'m aware of are the spacepart package, which seems to be i
import Graphics.Win32 import System.Win32.DLL import Control.Exception (bracket) import Foreign import System.Exit
I want to write a monad type class which will specify some basic actions for a DSL (domain-specific language) monad.
One of the biggest issues I have with haskell is to be able to (correctly) predict the performance of has开发者_运维知识库kell code. While I have some more difficult problems, I realize I have almost
I\'m pretty new in Haskell programming. I want to call some functions and save the result in a variable but I don\'t know how. I read couple of chapters about haskell function in two different book bu
I have a Haskell function which reports a long error message. Although I can write this message in one line, I want to break it into two or more e.g.
I have a type class IntegerAsType a where value :: a -> Integer data T5 instance IntegerAsType T5 where value _ = 5
I am trying to make some Haskell types which are parametrized not by types but by elements of a type, specifically, integers.For instance, a (linear-algebra) vector in R^2 and a vector in R^3 are diff
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