{"author_url":"https://blog.hatena.ne.jp/tanakaBox/","provider_url":"https://hatena.blog","provider_name":"Hatena Blog","type":"rich","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fboxnos.hatenablog.com%2Fentry%2F20070830%2F1188467870\" title=\" SICP\u3092\u8aad\u3080(44) \u554f\u984c 2.12 - 2.16 \u533a\u9593\u6f14\u7b97\u306e\u554f\u984c\u3092\u89e3\u304f? - \u30dc\u30af\u30ce\u30b9\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","version":"1.0","blog_title":"\u30dc\u30af\u30ce\u30b9","image_url":null,"height":"190","categories":["Scheme"],"url":"https://boxnos.hatenablog.com/entry/20070830/1188467870","description":"SICP\u3092\u8aad\u3082\u3046\u301c \u554f\u984c 2.12 (define (make-center-percent c p) (make-center-width c (* c (/ p 100)))) (define (percent i) (* (/ (width i) (center i)) 100)) (percent (make-center-percent 2 50)) ; 50 2.11\u306emake-center-width,center,width\u3092\u6d3b\u7528\u3059\u308c\u3070\u3001\u77ed\u304f\u66f8\u3051\u308b\u3002\u300c\u95a2\u6570\u306f\u4f7f\u3044\u307e\u308f\u305b!!\u300d\u3068\u3044\u3046\u3053\u3068\u3089\u3057\u3044\u3002 \u554f\u984c 2.13 \u308f\u304b\u3089\u306a\u304b\u3063\u305f\u306e\u3067\u3001\u89e3\u7b54\u3092\u898b\u305f\u3002ex-2.13 | SICP | Op\u2026","published":"2007-08-30 18:57:50","blog_url":"https://boxnos.hatenablog.com/","author_name":"tanakaBox","title":" SICP\u3092\u8aad\u3080(44) \u554f\u984c 2.12 - 2.16 \u533a\u9593\u6f14\u7b97\u306e\u554f\u984c\u3092\u89e3\u304f?","width":"100%"}