{"published":"2007-04-26 06:03:07","width":"100%","height":"190","author_url":"https://blog.hatena.ne.jp/redcat_math/","version":"1.0","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fredcat-math.hatenadiary.org%2Fentry%2F20070426%2F1177534987\" title=\"\u7d9a\u30fb1 - 1/2 + 1/4 - 1/5 + 1/7 - 1/8 + \u2026(\u5f8c\u7de8) - Red cat \u306e\u6570\u5b66\u3088\u3082\u3084\u307e\u8a71\" 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://redcat-math.hatenadiary.org/","url":"https://redcat-math.hatenadiary.org/entry/20070426/1177534987","type":"rich","provider_url":"https://hatena.blog","blog_title":"Red cat \u306e\u6570\u5b66\u3088\u3082\u3084\u307e\u8a71","categories":["\u6570\u5b66\u30fb\u89e3\u6790"],"provider_name":"Hatena Blog","image_url":null,"title":"\u7d9a\u30fb1 - 1/2 + 1/4 - 1/5 + 1/7 - 1/8 + \u2026(\u5f8c\u7de8)","author_name":"redcat_math","description":"\u524d\u56de\u306e\u7d9a\u304d\u3002 \u306e\u548c\u3092\u6c42\u3081\u308b\u3082\u3046\u4e00\u3064\u306e\u65b9\u6cd5\u3067\u3059\u3002 \u3068\u304a\u304d\u307e\u3059\u3002\u3053\u308c\u306f\u5468\u671f\u304c \u306e\u533a\u5206\u7684\u306b\u6ed1\u3089\u304b\u306a\u51fd\u6570\u306a\u306e\u3067 Fourier \u7d1a\u6570\u5c55\u958b\u304c\u51fa\u6765\u307e\u3059\u3002\u5b9f\u969b\u306b\u5c55\u958b\u3059\u308b\u3068 \u3068\u306a\u308a\u307e\u3059\u3002\u7279\u306b \u306e\u3068\u304d \u304c\u6210\u308a\u7acb\u3061\u307e\u3059*1\u3002\u3053\u3053\u3067 \u3092\u4ee3\u5165*2\u3059\u308b\u3068 \u3068\u306a\u308b\u306e\u3067 \u3092\u5f97\u307e\u3059\u3002 \u540c\u3058\u7b54\u3092\u5f97\u308b\u306e\u306b\u3001\u90fd\u5408\u4e09\u901a\u308a\u306e\u65b9\u6cd5\u3092\u7d39\u4ecb\u3057\u305f\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u304c\u3001\u3053\u306e\u3088\u3046\u306b\u3001\u540c\u3058\u7b54\u3092\u5f97\u308b\u306b\u3082\u3044\u308d\u3044\u308d\u306a\u65b9\u6cd5\u304c\u3042\u308b\u3068\u3053\u308d\u304c\u3001\u6570\u5b66\u306e\u9762\u767d\u3055\u306e\u4e00\u3064\u3067\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u304b\u3002 *1:\u3053\u308c\u306b Parseval \u306e\u7b49\u5f0f\u3092\u9069\u7528\u3059\u308b\u3068\u3001\u6709\u540d\u306a \u304c\u5f97\u3089\u308c\u307e\u3059\u3002 *2:\u3061\u306a\u307f\u306b\u3001 \u3092\u4ee3\u5165\u3059\u308b\u3068\u3001\u307e\u305f\u3082 Leibniz \u306e\u7d1a\u6570\u3092\u5f97\u308b\u3053\u3068\u304c\u51fa\u6765\u307e\u3059\u3002"}