{"title":"\u554f\u984c 3-76 (3.5.3 Exploiting the Stream Paradigm)","author_name":"kiririmode","width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkiririmode.hatenablog.jp%2Fentry%2F20081016%2Fp3\" title=\"\u554f\u984c 3-76 (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_url":"https://kiririmode.hatenablog.jp/","type":"rich","published":"2008-10-16 00:00:02","provider_name":"Hatena Blog","url":"https://kiririmode.hatenablog.jp/entry/20081016/p3","description":"3-75 \u306e\u3053\u306e\u56de\u7b54\u3082\u3084\u3063\u3071\u3057\u3042\u3093\u307e\u3057\u3088\u308d\u3057\u304f\u306a\u304f\u3066\uff0c\u4f55\u304c\u3088\u308d\u3057\u304f\u306a\u3044\u304b\u3068\u3044\u3046\u3068\uff0c\u3053\u306e\u4e00\u3064\u306e\u95a2\u6570\u306e\u4e2d\u306b\u306f\u300c\u5e73\u6ed1\u5316\u300d\u3092\u884c\u3046\u90e8\u5206\u3068\u300c0 \u3092\u307e\u305f\u304c\u308b\u9077\u79fb\u304c\u3042\u308b\u304b\u3069\u3046\u304b\u5224\u65ad\u300d\u3068\u3044\u3046\u4e8c\u3064\u306e\u6a5f\u80fd\u304c\u6df7\u3058\u3063\u3066\u3057\u307e\u3063\u3066\u3044\u307e\u3059\uff0e (define (make-zero-crossings input-stream last-value last-avgt) (let ((avpt (/ (+ (stream-car input-stream) last-value) 2))) (cons-stream (sign-change-detector avpt last-avpt) (make-zero-crossing\u2026","image_url":null,"categories":["SICP"],"provider_url":"https://hatena.blog","blog_title":"\u7406\u7cfb\u5b66\u751f\u65e5\u8a18","author_url":"https://blog.hatena.ne.jp/kiririmode/","version":"1.0","height":"190"}