{"author_url":"https://blog.hatena.ne.jp/inamori/","width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Finamori.hateblo.jp%2Fentry%2F20071016%2Fp1\" title=\"\u8907\u7d20\u6570\uff087\uff09 - inamori\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>","provider_name":"Hatena Blog","version":"1.0","provider_url":"https://hatena.blog","blog_url":"https://inamori.hateblo.jp/","type":"rich","description":"atan \u3088\u308a\u3001 \u305f\u3060\u3057\u3001log\u304c2\u03c0\u5468\u671f\u3060\u304b\u3089\u3001 \u5024\u306f\u3001\u5b9f\u6570\u304c\u03c0\u5468\u671f\u3002C99\u3067\u306f\u3001http://docs.hp.com/ja/B2355-60104-06/catan.3M.html\u5024\u57df\u306f\u3001[-\u03c0/2, \u03c0/2]\u3002 \u7d20\u76f4\u306b\u8a08\u7b97\u3059\u308c\u3070\u3088\u3044\u3002 import std.cstream; import std.math;void main(char[][] args) { dout.writefln(atan(1+1i)); // 1.01722+0.402359i dout.writefln(atan(1-1i)); // 1.01722+-0.402359i }cdouble atan(cdoub\u2026","published":"2007-10-16 00:00:00","author_name":"inamori","categories":["D\u8a00\u8a9e","\u6570\u5b66"],"height":"190","image_url":null,"url":"https://inamori.hateblo.jp/entry/20071016/p1","title":"\u8907\u7d20\u6570\uff087\uff09","blog_title":"inamori\u2019s diary"}