{"blog_title":"DOSEI\u306e\u65e5\u8a18","author_url":"https://blog.hatena.ne.jp/DOSEI/","version":"1.0","author_name":"DOSEI","url":"https://dosei.hatenadiary.jp/entry/20050629/p1","blog_url":"https://dosei.hatenadiary.jp/","provider_url":"https://hatena.blog","published":"2005-06-29 00:00:01","title":" #10 ?","type":"rich","provider_name":"Hatena Blog","categories":["\u8b1b\u7fa9","\u30d7\u30ed\u30b0\u30e9\u30e0\u8ad6"],"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fdosei.hatenadiary.jp%2Fentry%2F20050629%2Fp1\" title=\" #10 ? - DOSEI\u306e\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","image_url":null,"description":"\u4e0d\u52d5\u70b9\u5b9a\u7406\u3002 f = \u03c6(f) \u306e\u6700\u5c0f\u4e0d\u52d5\u70b9\u304c\u5b58\u5728\u3059\u308b\u3002 \u03c6\u306e\u6700\u5c0f\u4e0d\u52d5\u70b9\u306f \u2294{\u03c6k(\u22a5)}k \u3068\u306a\u308b\uff08\u3088\u3046\u306b\u62e1\u5f35\u3057\u305f\uff09\u3002\u03c6 \u306e\u69cb\u6210\u6cd5\u3002 \u4f8b\u3048\u3070\u968e\u4e57 fact(x) := if x=0 then 1 else x\u22c5fact(x-1) \u306f\u3001 F(f) = if x=0 then 1 else x\u22c5f(x-1) \u306e\u4e0d\u52d5\u70b9\u3067\u3042\u308b\u3002 \u3053\u306e\u3068\u304d\u6700\u5c0f\u4e0d\u52d5\u70b9\u304c fact(x) \u306e\u610f\u5473\u3092\u4e0e\u3048\u308b\uff08\u3042\u3093\u307e\u308a\u308f\u304b\u3063\u3066\u306a\u3044\uff09","width":"100%","height":"190"}