A Gentle Introduction to Haskell (English, File:GentleFR.There are many good Haskell tutorials and books. If you encounter a Could not find module ‘Control.Parallel’ error, please install the parallel library with cabal install -lib parallel Where to go from here A +RTS -N2 2.14s user 0.02s system 149% cpu 1.449 totalĬongratulations! You are now programming your multicore! Librarian reported on behalf of his office and urged the members to interest themselves more in. Note that in versions of GHC prior to GHC 7, you can leave off the -rtsopts flagĪnd now we can run our multicore program. Import Control.Parallel main = a ` par ` b ` par ` c ` pseq ` print ( a + b + c ) where a = ack 3 10 b = fac 42 c = fib 34 fac 0 = 1 fac n = n * fac ( n - 1 ) ack 0 n = n + 1 ack m 0 = ack ( m - 1 ) 1 ack m n = ack ( m - 1 ) ( ack m ( n - 1 )) fib 0 = 0 fib 1 = 1 fib n = fib ( n - 1 ) + fib ( n - 2 )Ĭompiling with -threaded and optimizations on: Installing Haskell on a Linux-based system requires to run some command which is not that much easy like MAC and Windows. Probably was "Hello, world!", so let's do that: If you've learned to program another language, your first program done.Īnd you are presented with a prompt. Alternatively, if you are on Windows, you may choose WinGHCi in the Start menu. If you have installed the Haskell Platform, open a terminal and type ghci (the name of the executable of the GHC interpreter) at the command prompt. Try Haskell provides a less complete but quicker way to give Haskell a shot. If you encounter difficulty, feel free to reach out to the Haskell community. The installation should be supported on most operating systems. The Platform comes with GHC, the de-facto standard Haskell compiler, and other tools that will help you program Haskell. The recommended way to get started with programming Haskell is the Haskell Platform. Everything is built in and updated frequently. It is great for small projects and has a 'playground' that is like a repl. 4.1 Write your first parallel Haskell program Install Haskell on Mac without any fuss Download and unzip ghc-7.10.3-r1.zip (197MB) Move it to a stable location such as /Applications Double-click for. Haskell for Mac (available in the App Store) is an excellent IDE for beginners or even for experts that want to play around with ideas.
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