{"height":"190","author_name":"tmurata","published":"2009-06-18 08:21:36","author_url":"https://blog.hatena.ne.jp/tmurata/","version":"1.0","categories":["SICP"],"provider_name":"Hatena Blog","image_url":null,"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftmurata.hatenadiary.org%2Fentry%2F20090618%2F1245280896\" title=\"SICP\u554f\u984c2.52 - tmurata\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>","url":"https://tmurata.hatenadiary.org/entry/20090618/1245280896","title":"SICP\u554f\u984c2.52","type":"rich","provider_url":"https://hatena.blog","width":"100%","blog_url":"https://tmurata.hatenadiary.org/","description":"\u9811\u5065(robust)\u306a\u8a2d\u8a08\u306e\u305f\u3081\u306e\u8a00\u8a9e\u30ec\u30d9\u30eb \u6210\u5c64\u8a2d\u8a08(stratified design) \u30ec\u30d9\u30eb\u306b\u5408\u308f\u305b\u305f\u4f5c\u696da. \u554f\u984c2.49\u306e\u57fa\u672c\u7684 wave \u30da\u30a4\u30f3\u30bf\u306b(\u4f8b\u3048\u3070\u7b11\u3063\u3066\u3044\u308b\u3088\u3046\u306a)\u7dda\u5206\u3092\u52a0\u3048\u3088(\u4f4e\u30ec\u30d9\u30eb) (define (wave frame) ((segment->painter (list (make-segment (make-vect 0 0.84) (make-vect 0.14 0.59)) (make-segment (make-vect 0.14 0.59) (make-vect 0.30 0.65)) (make-segment (make-vect 0.30 0.\u2026","blog_title":"tmurata\u306e\u65e5\u8a18"}