why learn haskell

Haskell is a pure functional programming language. Haskell platform is an integrated development environment of Haskell. This document describes how to install Haskell platform. Operating System: Ubuntu 12.04.1 lts; Linux 3.2.0-29-generic-pae 1 download Haskell platform an

Take advantage of the opportunity to reinstall your Linux virtual machine by documenting the process of installing Haskell, and helping readers who are still hesitant to wander outside the Haskell Gate.Basic concepts:Haskell:is a universal functional language, almost able to do whatever kind of development, including command line, GUI, database, Web. Source code can cross platform: Linux,mac, Windows, FreeB

F # was built from the most of the mature features of versions like Haskell and provides a huge number of practically-indispensable advantages in comparison: F # runs on. net which provides a concurrent Garbage Collector that can be used for GUI programming. haskell has only non-concurrent GCS that incurs arbitrarily-long stils, rendering it useless for real-world GUI programming. F # inherits librar

Today, when Google searched for information, it accidentally found a funny image of the new version of language fans. In combination with an interesting blog, it was a perfect match. So, put them together. Create a backup file for favorites. Original link here: http://lukeplant.me.uk/blog/posts/why-learning-haskell-python-makes-you-a-worse-programmer/ Why Learning Haskell/Python makes you a worse Programmer

Source Address: Haskell Learning-monadWhat is Monad Haskell is a purely functional language, the advantage of pure function is safe and reliable. The function output is entirely dependent on the input, there is no implicit dependency, and its existence is as perfect as a mathematical formula. But the pure function is isolated from the external environment, even the most basic input and output can not be com

: center; } textarea { overflow-x: auto; } .linenr { font-size:smaller } .code-highlighted {background-color:#ffff00;} .org-info-js_info-navigation { border-style:none; } #org-info-js_console-label { font-size:10px; font-weight:bold; white-space:nowrap; } .org-info-js_search-highlight {background-color:#ffff00; color:#000000; font-weight:bold; } /*]]>*/--> Write the custom installation configuration table of contents for the ha

Example of a failed Haskell FFI binding /*--> html { font-family: Times, serif; font-size: 12pt; } .title { text-align: center; } .todo { color: red; } .done { color: green; } .tag { background-color: #add8e6; font-weight:normal } .target { } .timestamp { color: #bebebe; } .timestamp-kwd { color: #5f9ea0; } .right {margin-left:auto; margin-right:0px; text-align:right;} .left {margin-left:0px; margin-right:auto; text-align:le

I know, a lot (are there actually many ?) People will think that pure static strong functional language such as Haskell is too serious and abstract. It is only suitable for cold and hard scientific tasks. However, dear Paul Hudak (http://cs-www.cs.yale.edu/homes/hudak/), let us see in a speech named "Haskell and the arts, haskell, the original rigorous thinking,

Understanding higher-order functions The higher order function is the important property of Haskell, and it is also the common property of all functional languages, and the higher order function is actually the function of functions, which is the form of a function as a parameter of another function, which is the higher order function. Let's take a look at an example of a function that takes a function and invokes it twice, expressed in a mathematica

Brain Hole Time: why there are so many programming languages in the world, that is decadent capitalism in order to increase the majority of people's learning costs and the compilation of the principle is too popular, it is recommended that the University of all courses to eliminate the compiling principle, and swing the razor, all the programming language kicked, In addition to machine language, only two languages are left: Assembler and Haskell (esca

"System Environment" Windows Server 2008 R2,haskell Platform 2013.2.0.0,GHC 7.6.3,cabal 1.16.0 "Action Steps" 1. Install Windows version Haskell Platform (does not support Windows Server), Haskell Platform integrates cabal (equivalent to. NET Msbuild+nuget), GHC (Glasgow Haskell Compiler,

first few elements maximum returns the list maximum, Minmum returns the minimum sum sum elem determines whether the element is in the list, Use infix expression 4 \elem ' [1,2,3,4] ' range operation using: To generate a large number of contiguous data, such as [1..100] can use the first two elements to represent the step, such as [1,3...100] generate 100 in the odd Haskell support an infinite list, such as [1,2..],

Has been plagued by the "attempt to read or write protected memory" issue when C # was called Haskell (see the C # call Haskell encounter attempted to read or write protected memory,c# when invoking Haskell). Attempt to read or write protected memory "problem", and trapped in it, the more deep, unable to extricate themselves, almost abandoned with C # to solve th

In this popush development process, I am responsible for adding the Haskell file option in popush and ensuring that it can run normally. When I received this task, I felt a bit like a fantasy, far exceeding my personal abilities. Later in the development process, with the help of Li yinghui, we could also communicate with other groups of students, which provided positive and favorable factors for the completion of our tasks. The first difficulty in

C + + Template programming implements Haskell's function pattern matching feature [figure]:The great god Bartosz Milewski wrote an article in 2009, "What Does Haskell has to does with C + +?", using C + + to implement some of the features of Haskell's functional programming language. "Portal at the end of the text"There is an example of this:Code 11.template2.public: Staticconstint value = n * fact4.}; 6.template7.public: Staticconstint value

1. In Haskell, the string is indeed the syntactic sugar of the character array. 2. merge list In Haskell, the combined list is implemented using the ++ OPERATOR: Here, we can also see the relationship between strings and character arrays. However, the ++ operator traverses the list on the left. The longer the list, the slower the access. In this case, it is better to use: However, the: operator c

Reply content:No! First of all, Python's list and Haskell list are two different things. The latter is a linked list, the former is a dynamic array. Then the implementation of Haskell's list comprehension relies on turning into map/filter (regardless of fusion optimization), and finally through recursion; the Python list comprehension implementation relies on __iter__ Method (that is, the meaning of the iterator), which is finally implemented by l

Haskell is only available in a small scope, so it does not have good ide support. However, we are pleased that we only need to make a few settings for Emacs, emacs becomes a powerful Haskell ide. Because Emacs itself is a customizable Lisp compiler, its scalability is incomparable. Emacs Haskell mode plug-in and Emacs folding mode plug-in can be found in emacswik

Installation Under centos/Fedora # Yum install ghc Version [[Email protected] Haskell] # ghc-V Glasgow Haskell compiler, version 7.0.4, for Haskell 98, Stage 2 booted by ghc version 7.0.4 Change Prompt Echo: set prompt "ghci>"> ~ /. Ghci Command # Boolean Ghci> true false False # Call function, get successor of 8 Ghci> succ 8 9 # Load scripts # Echo doublem

In Google group, we can see someone talking about the new usage of Haskell, that is, using Haskell to write the web. I checked it. It turns out that snap, A Haskell Web framework, looking at some of the benchmark results published by snap, it feels pretty good, both in the common Pong test and in the file test are relatively leading. It seems that you need to und