{"description":"\u30b9\u30c8\u30ea\u30fc\u30e0 s \u306e\u8981\u7d20\u306f\u3069\u3046\u306a\u3063\u3066\u3044\u308b\u3067\u3057\u3087\u3046\uff0c\u3068\u3044\u3046\u554f\u984c\uff0e (define (add-stream s1 s2) (stream-map + s1 s2)) (define s (cons-stream 1 (add-stream s s))) \u6700\u521d\u306e\u8981\u7d20\u304c 1 \u306a\u306e\u306f\u5b9a\u7fa9\u3088\u308a\u660e\u3089\u304b\uff0e \u6b21\u306e\u8981\u7d20\u306f\uff0c\u30b9\u30c8\u30ea\u30fc\u30e0 s \u306e\u5148\u982d\u8981\u7d20\u3092 2 \u56de\u8db3\u3057\u305f\u3082\u306e\u3067\u3042\u308a\uff0cs \u306e\u6700\u521d\u306e\u8981\u7d20\u306f\u4e0a\u8a18\u3088\u308a 1 \u3067\u3042\u308b\u304b\u3089\uff0c1+1=2\uff0e \u6b21\u306e\u8981\u7d20\u306f\uff0c2+2=4 4+4=8 \u3068\u3044\u3046\u3088\u3046\u306a\u30b9\u30c8\u30ea\u30fc\u30e0\uff0e1\uff0c2\uff0c4\uff0c8\uff0c16\uff0c32\uff0c\u30fb\u30fb\u30fb","title":"\u554f\u984c3-53 (3.5.2 Infinite Streams)","provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkiririmode.hatenablog.jp%2Fentry%2F20080823%2Fp2\" title=\"\u554f\u984c3-53 (3.5.2 Infinite Streams) - \u7406\u7cfb\u5b66\u751f\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>","type":"rich","height":"190","published":"2008-08-23 00:00:01","width":"100%","url":"https://kiririmode.hatenablog.jp/entry/20080823/p2","categories":["SICP"],"version":"1.0","provider_name":"Hatena Blog","blog_title":"\u7406\u7cfb\u5b66\u751f\u65e5\u8a18","author_name":"kiririmode","blog_url":"https://kiririmode.hatenablog.jp/","image_url":null,"author_url":"https://blog.hatena.ne.jp/kiririmode/"}