{"author_name":"dai-ig","height":"190","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/d/dai-ig/20190108/20190108220231.jpg","description":"\u6982\u8981 \u524d\u56de\u306b\u7d9a\u3044\u3066\u3001\u306e\u30de\u30af\u30ed\u30fc\u30ea\u30f3\u5c55\u958b(\u3092\u57fa\u6e96\u3068\u3057\u305f\u30c6\u30a4\u30e9\u30fc\u5c55\u958b)\u3092\u8a08\u7b97\u3059\u308b\u3002 \u3092\u30de\u30af\u30ed\u30fc\u30ea\u30f3\u5c55\u958b\u3059\u308b\u3068\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u3079\u304d\u7d1a\u6570\u3067\u8868\u305b\u308b\u3053\u3068\u3092\u524d\u56de\u793a\u3057\u305f\u3002 \\begin{eqnarray}f(x)&=&x-\\frac{1}{2}x^2+\\frac{1}{3}x^3-\\frac{1}{4}x^4+\\cdots\\\\&=&\\sum_{n=1}^{\\infty} \\frac{(-1)^{n-1}}{n}x^n\\end{eqnarray} \u53ce\u675f\u534a\u5f84\u306e\u5c0e\u51fa \u3092\u30de\u30af\u30ed\u30fc\u30ea\u30f3\u5c55\u958b\u3057\u305f\u3079\u304d\u7d1a\u6570\u306e\u53ce\u675f\u534a\u5f84\u3092\u5c0e\u51fa\u3059\u308b\u3002 \u3001\u3067\u3042\u308b\u306e\u3067\u3001\u5224\u5b9a\u5f0f\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u66f8\u3051\u308b\u3002 \\begin{eqnarray} \\require{ca\u2026","author_url":"https://blog.hatena.ne.jp/dai-ig/","categories":["\u6570\u5b66","\u6570\u5217"],"provider_name":"Hatena Blog","url":"https://a4.hateblo.jp/entry/2019/01/19/132226","version":"1.0","published":"2019-01-19 13:22:26","type":"rich","blog_url":"https://a4.hateblo.jp/","blog_title":"A4\u306e\u5b87\u5b99","width":"100%","provider_url":"https://hatena.blog","title":"ln(x+1)\u306e\u30de\u30af\u30ed\u30fc\u30ea\u30f3\u5c55\u958b\u3068\u53ce\u675f\u534a\u5f84 \u305d\u306e2","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fa4.hateblo.jp%2Fentry%2F2019%2F01%2F19%2F132226\" title=\"ln(x+1)\u306e\u30de\u30af\u30ed\u30fc\u30ea\u30f3\u5c55\u958b\u3068\u53ce\u675f\u534a\u5f84 \u305d\u306e2 - A4\u306e\u5b87\u5b99\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>"}