{"description":"\u307e\u305a\u306f\uff0c\u4e09\u3064\u7d44\u306e\u7121\u9650\u30b9\u30c8\u30ea\u30fc\u30e0\u3092\u4f5c\u308b\u95a2\u6570 triples\uff0e\u3053\u308c\u3067\u3042\u3063\u3066\u3093\u306e\u304b\u306a\u30fc\uff0e (define (triples s t u) (cons-stream (list (stream-car s) (stream-car t) (stream-car u)) (interleave (stream-map (lambda (x) (cons (stream-car s) x)) (pairs t u)) (triples (stream-cdr s) (stream-cdr t) (stream-cdr u))))) \u3042\u3068\u306f\uff0c\uff0c\u3064\u307e\u308a\u30d4\u30bf\u30b4\u30e9\u30b9\u306e\u5b9a\u7406\u3092\u6e80\u305f\u3059 (i, j, k) \u306e\u307f\u542b\u3080\u7121\u9650\u2026","provider_url":"https://hatena.blog","height":"190","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkiririmode.hatenablog.jp%2Fentry%2F20081003%2Fp2\" title=\"\u554f\u984c 3-69 (3.5.3  Exploiting the Stream Paradigm) - \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>","blog_title":"\u7406\u7cfb\u5b66\u751f\u65e5\u8a18","author_url":"https://blog.hatena.ne.jp/kiririmode/","version":"1.0","url":"https://kiririmode.hatenablog.jp/entry/20081003/p2","author_name":"kiririmode","provider_name":"Hatena Blog","title":"\u554f\u984c 3-69 (3.5.3  Exploiting the Stream Paradigm)","blog_url":"https://kiririmode.hatenablog.jp/","categories":["SICP"],"type":"rich","width":"100%","published":"2008-10-03 00:00:01","image_url":null}