{"blog_title":"fortran66\u306e\u30d6\u30ed\u30b0","provider_name":"Hatena Blog","author_url":"https://blog.hatena.ne.jp/fortran66/","height":"190","version":"1.0","published":"2022-06-22 02:39:02","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ffortran66.hatenablog.com%2Fentry%2F2022%2F06%2F22%2F023902\" title=\"\u3010\u5bdd\u8a00\u3011\u590f\u81f3 - fortran66\u306e\u30d6\u30ed\u30b0\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","width":"100%","title":"\u3010\u5bdd\u8a00\u3011\u590f\u81f3","type":"rich","provider_url":"https://hatena.blog","url":"https://fortran66.hatenablog.com/entry/2022/06/22/023902","categories":[],"description":"\u81f3\u70b9 www.youtube.com Euler \u306e \u03b3 \u53ce\u675f\u304c\u9045\u3044\uff08\uff5eO(1/n) \uff09 Euler \u306e \u03b3 \u3067\u3059\u304c\u3001\u5f15\u304flog(n) \u3092\u5b9a\u7fa9\u304b\u3089\u305a\u3089\u3057\u3066 log(n+1/2) \u306b\u3059\u308b\u3068 \u5b9a\u7fa9\u3088\u308a\u65e9\u304f O(1/24n2) \u3067\u53ce\u675f\u3059\u308b\u306e\u304c\u8349\u3002 \u8a08\u7b97\u306b\u3088\u308b\u6bd4\u8f03 \u5c0f\u3055\u3044\u9805\u304b\u3089\u306e\u548c program euler_gamma implicit none integer, parameter :: kd = kind(0.0d0) real(kd) :: s integer :: i, n = 10**7 s = 0.0_kd do i = n, 1, -1 s = s + 1.0_kd / i end d\u2026","image_url":"https://m.media-amazon.com/images/I/41mUrsUo3TL._SL500_.jpg","blog_url":"https://fortran66.hatenablog.com/","author_name":"fortran66"}