{"author_name":"Pulin","published":"2016-12-17 10:09:09","categories":["\u79c1\u4e8b"],"width":"100%","height":"190","image_url":null,"blog_url":"https://pulin.hateblo.jp/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fpulin.hateblo.jp%2Fentry%2F20161217%2F1481936949\" title=\"\u0394f(x)\u2243f&#39;(x)\u0394x - \u5fa1\u5149\u5802\u4e16\u754c~Pulin\u306e\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_url":"https://hatena.blog","title":"\u0394f(x)\u2243f'(x)\u0394x","type":"rich","version":"1.0","url":"https://pulin.hateblo.jp/entry/20161217/1481936949","provider_name":"Hatena Blog","description":"\u95a2\u6570f(x)\u306e\u30c6\u30fc\u30e9\u30fc\u5c55\u958b f(x)=f(x0)+f'(x0)(x-x0)+(1/2!)f''(x0)(x-x0)^2+... \u3067 x=X+\u0394X x-x0=\u0394X \u3068\u7f6e\u304f\u3068 x0=x-\u0394X=X \u306a\u306e\u3067 f(X+\u0394X)=f(X)+f'(X)\u0394X+(1/2!)f''(X)(\u0394X)^2+... \u3053\u308c\u304b\u3089 \u0394f=f(X+\u0394X)-f(X)=f'(X)\u0394X+(1/2!)f''(X)(\u0394X)^2+... \u3068\u306a\u308b\u3002 \u305d\u3053\u3067\u30012\u6b21\u4ee5\u4e0a\u306e\u9805\u304c\u5fae\u5c0f\u3067\u7121\u8996\u3067\u304d\u308b\u3068\u3057\u305f \u0394f(x)\u2243f'(x)\u0394x \u3068\u3044\u3046\u8fd1\u4f3c\u304c\u7269\u7406\u306a\u3069\u306b\u3088\u304f\u51fa\u3066\u304f\u308b\u3002 \u591a\u5909\u6570\u306e\u5834\u5408\u3001 \u0394f(x,y)\u2243(\u2202f/\u2202x)\u0394x+(\u2202f/\u2202y)\u0394y \u306a\u3069\u306e\u3088\u3046\u306b\u306a\u2026","author_url":"https://blog.hatena.ne.jp/Pulin/","blog_title":"\u5fa1\u5149\u5802\u4e16\u754c~Pulin\u306e\u65e5\u8a18"}