SERIES Common Lisp Package
A series is a data structure much like a sequence, with similar kinds of operations. The difference is that in many situations, operations on series may be composed functionally and yet execute iteratively, without the need to construct intermediate series values explicitly. In this manner, series provide both the clarity of a functional programming style and the efficiency of an iterative program
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30分プãƒã‚°ãƒ©ãƒ ã€ãã®182。OCamlã§mapreduce。 OCamlã®ãƒãƒ£ãƒãƒ«(Event.channel)を覚ãˆãŸã®ã§ã€ã•ã£ãã使ã£ã¦mapreduceを実装ã—ã¦ã¿ã‚ˆã†ã€‚æ£ç›´ã€ã“ã‚Œã§ã‚ã£ã¦ã‚‹ã®ã‹ã‚ã¾ã‚Šè‡ªä¿¡ãŒãªã„。 自分ã¯mapreduceを次ã®ã‚ˆã†ã«ç†è§£ã—ã¦ã„る。 mapreduce f g init xsã¨ã„ã†å½¢ã§ä½¿ã† fã¯f c xã¨ã„ã†é¢¨ã«ä½¿ã‚れる cã¯ãƒãƒ£ãƒãƒ«ã§xã¯xsã®ä»»æ„ã®è¦ç´ xã‹ã‚‰ä½•ã‹ã‚’計算ã—ã¦ãã®çµæžœã‚’cã«é€ä¿¡ã™ã‚‹ é€ä¿¡ã™ã‚‹ã®ã¯(key,value)ã¨ã„ã†å½¢ ã“ã‚ŒãŒmapã«ç›¸å½“ã™ã‚‹ gã¯g key [value] initã®ã‚ˆã†ã«ä½¿ã‚れる mapã®çµæžœãŒkeyã”ã¨ã«ã¾ã¨ã‚られã¦ã„る。ãã—ã¦ãれをfoldã™ã‚‹ã®ã«ä½¿ã‚れる ã“ã‚ŒãŒreduce(fold)ã«ç›¸å½“ã™ã‚‹ 最終的ã«gã§reduceã—ãŸå€¤ãŒå¸°ã‚‹ ã¡ãªã¿ã«ã‚¹ãƒ¬ãƒƒãƒ‰ã‚’使ã£ãŸãƒ—ãƒã‚°ãƒ©ãƒ ã¯ã€æ¬¡ã®ã‚ˆã†ã«ã‚³ãƒ³ãƒ‘イルã™ã‚‹ã€‚
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How to Use Modules in PLT Scheme v200
This tutorial provides an overview of the PLT Scheme module system. Complete details can be found in PLT MzScheme: Language Manual. If you have DrScheme, search with Help Desk to quickly find details on any particular topic. Defining and Using Modules A module declaration has the shape (module module-name-identifier implementation-language-name expression-or-definition ...) The module system works
WebHome - Cookbook - s c h e m a t i c s : c o o k b o o k
%TEXTHEAD%Welcome to the Schematics Scheme Cookbook. The Schematics Scheme Cookbook is a collaborative effort to produce documentation and recipes for using Scheme for common tasks. See the BookIntroduction for more information on the Cookbook's goals, and the important ContributorAgreement statement. Cookbook Starting Points Table of Contents (with recipes) Getting started with PltScheme The F
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PLaneT Package Repository : PLaneT
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