{"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fita.hatenadiary.jp%2Fentry%2F20030306%2Fp2\" title=\" - ita\u2019s diary\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","image_url":null,"categories":["\u7406\u7cfb\u30cd\u30bf","J","\u7406\u7cfb\u30cd\u30bf","J"],"published":"2003-03-06 00:00:01","description":"\u30c7\u30a3\u30ba\u30cb\u30fc\u30a2\u30cb\u30e1\u300e\u30ea\u30ed\uff06\u30b9\u30c6\u30a3\u30c3\u30c1\u300f\u306e\u96fb\u8eca\u306e\u4e2d\u540a\u5e83\u544a\u3002 \u30a2\u30db\u9762\u306e\u30a8\u30a4\u30ea\u30a2\u30f3\u306e\u89e3\u8aac\u3067\u300c\u77e5\u80fd\u306f\u30b9\u30fc\u30d1\u30fc\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u4ee5\u4e0a\u300d\u3068\u3042\u308a\uff08\u30b9\u30d1\u30b3\u30f3\u306b\u77e5\u80fd\u306f\u306a\u3044\u3093\u3060\u304c\uff09\u3001\u6570\u5f0f\u304c\u305a\u3089\u305a\u3089\u66f8\u3044\u3066\u3042\u308b\u3002\u4e00\u3064\u306f\u0393\u03bc\u03bd\u3046\u3093\u306c\u3093\u3002\u81ea\u5206\u306f\u7269\u6027\u7269\u7406\u5c4b\u306a\u3093\u3067\u76f8\u5bfe\u8ad6\u95a2\u4fc2\u306f\u30d1\u30b9\u3002\u3082\u3046\u4e00\u3064\u306f \u222bdx sin x/\u221ax=\u03a3_{k=0}^\\infty \u3068\u304b\u66f8\u3044\u3066\u3042\u308b\u3002\u53f3\u8fba\u306f\u306a\u3093\u3084\u306d\u3093\u3001\u3068\u3044\u3046\u306e\u306f\u304a\u3044\u3068\u3044\u3066\u3001\u5de6\u8fba\u3092\u8003\u3048\u305f\u3002\u7a4d\u5206\u7bc4\u56f2\u306f\uff10\u301c\uff0b\u221e\u3067\u3057\u3087\u3046\u3002sin x/x \u3060\u3068\u3001\u5927\u5b66\u3067\u7559\u6570\u5b9a\u7406\u3092\u4f7f\u3063\u3066\u3088\u304f\u3084\u308b\u554f\u984c\u3060\u306a\u3002\u78ba\u304b\u8907\u7d20\u5e73\u9762\u306e\u4e0a\u534a\u5206\u306b\u3042\u308b\u534a\u5f84 R \u3068\u03b5\u306e\u534a\u5186\u3068\u3001\u5b9f\u8ef8\u3092\u03b5\u304b\u3089R\u307e\u3067\u3044\u304f\u7d4c\u8def\u3067 exp iz/z \u3092\u7a4d\u5206\u3057\u3066 R\u2192\u221e\u3001\u03b5\u21920\u3068\u3059\u308b\u2026","width":"100%","url":"https://ita.hatenadiary.jp/entry/20030306/p2","height":"190","provider_url":"https://hatena.blog","version":"1.0","provider_name":"Hatena Blog","author_url":"https://blog.hatena.ne.jp/ita/","title":"","blog_title":"ita\u2019s diary","blog_url":"https://ita.hatenadiary.jp/","type":"rich","author_name":"ita"}