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Crystal
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programming
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rubyに関するNnwwwのブックマーク (2)
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200 users
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crystal-lang.org
●テクノロジー
Syntax Crystal’s syntax is heavily inspired by Ruby’s, so itfeels natural to read and easy to write, and has the added benefit of a lower learning curve for experienced Ruby devs. # A very basic HTTP server require "http/server" server = HTTP::Server.new do |context| context.response.content_type = "text/plain" context.response.print "Hello world, got #{context.request.path}!" end puts "Listening
Nnwww
2015/06/08
●Crystal
●programming
●ruby
●プログラミング
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211 users
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qiita.com/gogotanaka
●テクノロジー
そうです、Matrix︵行列︶クラスに色々入る予定のようです. .... いやもっと伝えるべきモノが他にあるとの怒号が今にも聞こえて来そうですが... ﹁すみません今日の所は行列の紹介をさせて下さい.﹂ 多くの方は興味もないであろうけど、 Rubyには行列やベクトルを扱う Matrix クラスというものがありまして、 Ruby2.2では色々新機能やバグfixが入るようです. ﹁行列ベクトル演算するならRubyよね﹂ と言われるくらいのモノにはなるのではないでしょうか？ 本日はRuby2.2以前にあるものも含めMatrixのマジですごい所を紹介します. 使わないともったいない！すごいMatrix, 楽しく学ぼう！ 1. LU分解LU分解が出来るという事は... n元連立方程式をいとも簡単に解く事が出来ちゃうの # 2x + y = 2 # x + 2y = 3 Matrix[ [2, 1]
Nnwww
2014/10/09
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Crystal : The Crystal Programming Language
Ruby2.2 ではアレが死ぬほど使いやすくなるの！ - Qiita