{"blog_title":"kawaguti\u2019s diary","provider_name":"Hatena Blog","version":"1.0","author_name":"wayaguchi","width":"100%","type":"rich","provider_url":"https://hatena.blog","title":" Eralng Course:  Module 2 - Sequential Programming (\u5f8c\u7de8)","image_url":null,"url":"https://kawaguti.hateblo.jp/entry/_eralng_cource_module_2_sequen_2","blog_url":"https://kawaguti.hateblo.jp/","published":"2007-06-15 01:05:12","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkawaguti.hateblo.jp%2Fentry%2F_eralng_cource_module_2_sequen_2\" title=\" Eralng Course:  Module 2 - Sequential Programming (\u5f8c\u7de8) - kawaguti\u2019s diary\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","categories":["\u30e1\u30e2","Erlang"],"description":"\u3082\u304f\u3058 \u30ea\u30b9\u30c8\u64cd\u4f5c ( Traversing Lists ) \u3088\u304f\u3042\u308b\u30d1\u30bf\u30fc\u30f3 (\u3053\u306e\u3078\u3093\u306fProlog) X\u3092\u5408\u8a08\u3059\u308bsum\u95a2\u6570\u306e\u7d50\u679c\u3092\u3001 X\u306e\u6570\u3092\u51fa\u3059len\u95a2\u6570\u306e\u7d50\u679c\u3067\u5272\u3063\u305f \u3082\u306e\u304c avarage \u3067\u3059\u3088\u3002 average(X) -> sum(X) / len(X). sum\u306f\u30ea\u30b9\u30c8\u306e\u4e00\u756a\u524d\u3068\u3001\u305d\u306e \u6b8b\u308a\u8981\u7d20\u306esum\u3092\u8db3\u3057\u305f\u7269\u3067\u3059\u3088\u3002 (\u518d\u5e30\u3092\u4f7f\u3063\u3066\u7dcf\u548c\u3092\u6c42\u3081\u308b) sum([H|T]) -> H + sum(T); sum() -> 0. len\u306f (1 + \u5148\u982d\u3092\u306e\u305e\u3044\u305f \u6b8b\u308a\u306e\u30ea\u30b9\u30c8\u306elen)\u3067\u3059\u3088\u3002 (\u518d\u5e30\u3092\u4f7f\u3063\u3066\u8981\u7d20\u6570\u3092\u6c42\u3081\u308b) len([_|T]) -> 1 + len(T);\u2026","author_url":"https://blog.hatena.ne.jp/wayaguchi/","height":"190"}