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Higher-Order Functions

Higher-Order Functions

Koen Lindström Claessen. Higher-Order Functions. What is a “Higher Order” Function?. A function which takes another function as a parameter. Examples map even [1, 2, 3, 4, 5] = [False, True, False, True, False] filter even [1, 2, 3, 4, 5] = [2, 4]. even :: Int -> Bool

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728 views • 53 slides
PROGRAMMING IN HASKELL プログラミング Haskell

PROGRAMMING IN HASKELL プログラミング Haskell

PROGRAMMING IN HASKELL プログラミング Haskell. Chapter 7 - Higher-Order Functions 高階関数. 愛知県立大学 情報科学部 計算機言語論 ( 山本晋一郎・大久保弘崇、 2011 年 ) 講義資料 オリジナルは http://www.cs.nott.ac.uk/~gmh/book.html を参照のこと. カリー化により 2 引数以上の関数の戻り値は関数となるため、多くの関数が厳密には高階関数である。より限定して 引数として関数を取る関数 という立場も。. Introduction.

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715 views • 48 slides
PROGRAMMING IN HASKELL

PROGRAMMING IN HASKELL

PROGRAMMING IN HASKELL. Chapter 7 - Higher-Order Functions. Introduction. A function is called higher-order if it takes a function as an argument or returns a function as a result. twice :: (a  a)  a  a twice f x = f (f x). twice is higher-order because it

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436 views • 26 slides
CSCE 314 Programming Languages

CSCE 314 Programming Languages

CSCE 314 Programming Languages. Haskell: Higher-order Functions Dr. Hyunyoung Lee Based on slides by Graham Hutton and notes by Jaakko Järvi. Introduction. A function is called higher-order if it takes a function as an argument or returns a function as a result.

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349 views • 23 slides
Lecture 20: Lists and Higher-Order Functions in Haskell

Lecture 20: Lists and Higher-Order Functions in Haskell

The University of North Carolina at Chapel Hill. Lecture 20: Lists and Higher-Order Functions in Haskell. COMP 144 Programming Language Concepts Spring 2002. Felix Hernandez-Campos Feb 27. Generator. List Comprehensions. Lists can be defined by enumeration using list comprehensions

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217 views • 18 slides

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