{"blog_title":"ita\u2019s diary","version":"1.0","url":"https://ita.hatenadiary.jp/entry/20071227/p1","blog_url":"https://ita.hatenadiary.jp/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fita.hatenadiary.jp%2Fentry%2F20071227%2Fp1\" title=\" \u30bf\u30a4\u30e0\u30c8\u30f3\u30cd\u30eb\u306e\u6570\u5024\u8a08\u7b97 - 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>","author_url":"https://blog.hatena.ne.jp/ita/","description":"\u3053\u308c\u3092\u6570\u5024\u7684\u306b\u89e3\u3044\u3066\u307f\u308b\u3002http://d.hatena.ne.jp/ita/20071218/p1 \u9577\u3055L\u306e\u4e00\u6b21\u5143\u7cfb\u304c\u3042\u308a\u3001\u4e21\u7aef\u304c\u6642\u9593T\u3060\u3051\u305a\u308c\u3066\u3064\u306a\u304c\u3063\u3066\u3044\u308b\u3002\u5dee\u5206\u6cd5\u3067\u5358\u7d14\u306a\u30aa\u30a4\u30e9\u30fc\u6cd5, f[x] +=dt*dfdt(f[])\u3092\u8003\u3048\u308b\u3002 \u62e1\u6563\u65b9\u7a0b\u5f0f \u65b9\u7a0b\u5f0f\u306f\u3002\u5dee\u5206\u3060\u3068 #define XNUM 1000 #define dt 0.001 #define dx (L/XNUM) double f[XNUM]; f[x] += dt* (2*f[x]-f[x-1]-f[x+1])/(dx*dx);\u666e\u901a\u306ft=0\u306e\u521d\u671f\u5024\u3092\u8a2d\u5b9a\u3057\u3066\u6642\u9593\u767a\u5c55\u3055\u305b\u308b\u3002\u3057\u304b\u3057\u4e21\u7aef\u306e\u6642\u9593\u304c\u305a\u308c\u3066\u3044\u308b\u3068\u672a\u6765\u306e\u5024\u304c\u5fc5\u8981\u306b\u306a\u308a\u8a08\u2026","provider_name":"Hatena Blog","title":" \u30bf\u30a4\u30e0\u30c8\u30f3\u30cd\u30eb\u306e\u6570\u5024\u8a08\u7b97","type":"rich","published":"2007-12-27 00:00:00","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/i/ita/20071229/20071229125140.png","width":"100%","categories":["\u7406\u7cfb\u30cd\u30bf","J"],"author_name":"ita","provider_url":"https://hatena.blog","height":"190"}