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Functionally Solving Problems Table of contents A Fistful of Monads Haskell's combination of purity, higher order functions, parameterized algebraic data types, and typeclasses allows us to implement polymorphism on a much higher level than possible in other languages. We don't have to think about types belonging to a big hierarchy of types. Instead, we think about what the types can act like and then connect them with the appropriate typeclasses. An Int can act like a lot of things. It can act like an equatable thing, like an ordered thing, like an enumerable thing, etc. Typeclasses are open, which means that we can define our own data type, think about what it can act like and connect it with the typeclasses that define its behaviors. Because of that and because of Haskell's great type system that allows us to know a lot about a function just by knowing its type decl...
Tom Pledger [email protected] Fri, 12 Oct 2001 08:02:45 +1300 Previous message: performUnsafeIO Next message: help for exercise 4.10 Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] Sebastian Schulz writes: | hi. | | I need to extract an IO String to String. | Remembering some function like 'performUnsafeIO :: IO a -> a', I | searched the hugs libs, but without a match. | | Does a function like this still exists? It (unsafePerformIO) still exists. | Or how can I transform IO a to a? There's a safer way: http://haskell.org/wiki/wiki?ThatAnnoyingIoType Previous message: performUnsafeIO Next message: help for exercise 4.10 Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] ...
CentralNotice Lojban From Wikipedia, the free encyclopedia Jump to: navigation , search Lojban la .lojban. Pronunciation [laʔˈloʒbanʔ] Created by Logical Language Group Date 1987 Setting and usage a logically engineered language for various usages Purpose constructed languages engineered languages logical languages Lojban Writing system Latin and others Sources Loglan Language codes ISO 639-2 jbo ISO 639-3 jbo This article contains IPA phonetic symbols. Without proper rendering support , you may see question marks, boxes, or other symbols instead of Unicode characters. Lojban (pronounced [ˈloʒban] ( listen ) ) is a constructed , syntactically unambiguous human language based on predicate logic , succeeding the project of Loglan . The name "Lojban" is a compound formed from loj and ban , which are short forms o...
Skip to content Sign up Sign in This repository Explore Features Enterprise Blog Star 1 Fork 0 infoforcefeed / curl2sudo /.container /.repohead Code Issues Pull Requests Pulse Graphs HTTPS Subversion You can clone with HTTPS or Subversion . Download ZIP /.repository-sidebar Python 3 and a lot of disdain. 3 commits 1 branch 0 releases 1 contributor Python 100% Python branch: master Switch branches/tags /.select-menu-header Branches Tags /.select-menu-tabs /.select-menu-filters master /.select-menu-item Nothing to show /.select-menu-list Nothing to show /.select-menu-list /.select-menu-modal /.select-menu-modal-holder /.select-menu curl2sudo / Small fixes, made readme ...
Skip to content Sign up Sign in This repository Explore Features Enterprise Blog Star 3 Fork 0 pemj / crawlblr /.container /.repohead Code Issues Pull Requests Pulse Graphs HTTPS Subversion You can clone with HTTPS or Subversion . Download ZIP /.repository-sidebar Tumblr crawler 159 commits 1 branch 0 releases 2 contributors Python 86.6% C++ 13.4% Python C++ branch: master Switch branches/tags /.select-menu-header Branches Tags /.select-menu-tabs /.select-menu-filters master /.select-menu-item Nothing to show /.select-menu-list Nothing to show /.select-menu-list /.select-menu-modal /.select-menu-modal-holder /.select-menu crawlblr / moved bits out of main into...
Home Installation Documentation Scikit-learn 0.15 (stable) Tutorials User guide API FAQ Development Scikit-learn 0.14 Scikit-learn 0.13 Scikit-learn 0.12 Scikit-learn 0.11 More versions... Examples end navbar Banner Carousel items Carousel nav ‹ › Simple and efficient tools for data mining and data analysis Accessible to everybody, and reusable in various contexts Built on NumPy, SciPy, and matplotlib Open source, commercially usable - BSD license Github "fork me" ribbon scikit-learn Tutorials An introduction to machine learning with scikit-learn Machine learning: the problem setting Loading an example dataset Learning and predicting Model persistence A tutorial on statistical-learning for scientific data processing Statistical learning: the setting and the estimator object i...
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Personal tools Home Log in Views Page Discussion View source History Jump to: navigation , search A quick introduction to QuickCheck, and testing Haskell code. See Introduction to QuickCheck2 for the QC2 version 1 Motivation 2 Keeping things pure 3 Testing with QuickCheck 4 Testing take5 5 Another property 6 Coverage 7 Going further 1 Motivation In September 2006, Bruno Martínez asked the following question: -- I've written a function that looks similar to this one getList = find 5 where find 0 = return [ ] find n = do ch <- getChar if ch ` elem ` [ 'a' .. 'e' ] then do tl <- find ( n - 1 ) return ( ch : tl ) else find n -- I want to test this function, without hitting the filesystem. In C++ I -- would use a istringstream. I couldn't find a function that returns a -- Handle from a String. The closer thing that may wor...