{"published":"2010-10-04 11:18:18","blog_url":"https://kazu-yamamoto.hatenablog.jp/","description":"State \u30e2\u30ca\u30c9\u3068\u7591\u4f3c\u4e71\u6570\u3067\u66f8\u3044\u305f\u3088\u3046\u306b\u3001\u9045\u5ef6\u8a55\u4fa1\u304c\u5229\u7528\u3067\u304d\u308b\u8a00\u8a9e\u3067\u306f\u3001\u7121\u9650\u6570\u5217\u304c\u6271\u3048\u308b\u306e\u3067\u3001\u7591\u4f3c\u4e71\u6570\u3092\u4f7f\u3046\u969b\u306b\u72b6\u614b\u3092\u6301\u305f\u306a\u304f\u3066\u3082\u3088\u3044\u3002\u305d\u306e\u4e00\u4f8b\u3068\u3057\u3066\u3001\u30e2\u30f3\u30c6\u30ab\u30eb\u30ed\u6cd5\u306b\u3088\u308b\u5186\u5468\u7387\u306e\u8fd1\u4f3c\u3092\u6319\u3052\u3066\u307f\u308b\u3002XY \u5e73\u9762\u306b\u5358\u4f4d\u5186\u3092\u8003\u3048\u308b\u3002 radius :: Double radius = 1.0\u3053\u306e\u5186\u304c\u3074\u3063\u305f\u308a\u53ce\u307e\u308b\u5927\u304d\u30551\u306e\u6b63\u65b9\u5f62\u3092\u63cf\u304f\u3002\u3053\u3053\u3067\u3001\u7b2c\u4e00\u8c61\u9650\u306e\u307f\u3092\u8003\u3048\u308b\u3002\u6b63\u65b9\u5f62\u306e\u3046\u3061\u3001\u7b2c\u4e00\u8c61\u9650\u306b\u3042\u308b\u90e8\u5206\u306e\u9762\u7a4d\u306f\u30011/4\u3002\u7b2c\u4e00\u8c61\u9650\u306b\u3042\u308b\u5186\u306e\u9762\u7a4d\u306f\u3001\u5168\u4f53\u306e 1/4 \u3060\u304b\u3089 \u03c0/4\u3002\u30e2\u30f3\u30c6\u30ab\u30eb\u30ed\u6cd5\u3067\u306f\u3001\u7b2c\u4e00\u8c61\u9650\u306e\u6b63\u65b9\u5f62\u306e\u4e2d\u306b\u3001\u30e9\u30f3\u30c0\u30e0\u306b\u70b9(x,y)\u3092\u6253\u3064\u3002\u305f\u304f\u3055\u3093\u306e\u30e9\u30f3\u30c0\u30e0\u306a\u70b9\u3092\u3001\u7591\u4f3c\u4e71\u6570\u304b\u3089\u751f\u6210\u3057\u3088\u3046\u3002\u305d\u306e\u2026","height":"190","author_name":"kazu-yamamoto","blog_title":"\u3042\u3069\u3051\u306a\u3044\u8a71","url":"https://kazu-yamamoto.hatenablog.jp/entry/20101004/1286158698","categories":["Haskell"],"image_url":null,"title":"\u7591\u4f3c\u4e71\u6570\u306b\u72b6\u614b\u306a\u3093\u3066\u3044\u3089\u306a\u3044","width":"100%","author_url":"https://blog.hatena.ne.jp/kazu-yamamoto/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkazu-yamamoto.hatenablog.jp%2Fentry%2F20101004%2F1286158698\" title=\"\u7591\u4f3c\u4e71\u6570\u306b\u72b6\u614b\u306a\u3093\u3066\u3044\u3089\u306a\u3044 - \u3042\u3069\u3051\u306a\u3044\u8a71\" 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","version":"1.0","provider_url":"https://hatena.blog","provider_name":"Hatena Blog"}