{"id":357,"date":"2012-10-13T23:42:48","date_gmt":"2012-10-13T14:42:48","guid":{"rendered":"http:\/\/prgforum.com\/blog\/?p=357"},"modified":"2012-10-13T23:42:48","modified_gmt":"2012-10-13T14:42:48","slug":"%e7%be%8e%e7%9a%84%e6%84%9f%e8%a6%9a%e3%81%af%e9%87%8d%e8%a6%81%e3%81%a0%e3%81%a8%e6%80%9d%e3%81%84%e3%81%be%e3%81%99","status":"publish","type":"post","link":"http:\/\/prgforum.com\/blog\/?p=357","title":{"rendered":"\u7f8e\u7684\u611f\u899a\u306f\u91cd\u8981\u3060\u3068\u601d\u3044\u307e\u3059"},"content":{"rendered":"<p>\u305d\u3093\u306a\u306b\u5927\u8888\u88df\u306a\u8a71\u3067\u306f\u306a\u3044\u304c\u3001\u3042\u308b\u8cea\u554f\u306e\u4e2d\u30672\u70b9(a,b)\u3001(c,d)\u3092\u901a\u308b\u76f4\u7dda\u306e\u65b9\u7a0b\u5f0f\u3092\u5148\u751f\u304c\u3001<\/p>\n<p>y = (b-d)\/(a-c)(x-a) + b<\/p>\n<p>\u3068\u7d39\u4ecb\u3057\u305f\u3068\u66f8\u3044\u3066\u3042\u3063\u305f\u3002\u4e2d\u5b66\u751f\u76f8\u624b\u306b\u8aac\u660e\u3057\u305f\u3088\u3046\u306a\u306e\u3067\u3001y=ax+b \u306e\u5f62\u306b\u3057\u305f\u304b\u3063\u305f\u306e\u3060\u3068\u601d\u3046\u304c\u3001\u3053\u308c\u306f\u3053\u308c\u3067\u3044\u3044\u3068\u3057\u3066\u3001\u79c1\u306e\u899a\u3048\u3066\u3044\u308b\u306e\u306f(x1,y1)\u3001(x2,y2)\u3092\u901a\u308b\u76f4\u7dda\u304c\u6b21\u306e\u3088\u3046\u306b\u306a\u308b\u3068\u3044\u3046\u3082\u306e\u3067\u3042\u308b\u3002<\/p>\n<p>(x1-x2)(y-y1) = (y1-y2)(x-x1)<\/p>\n<p>\u5909\u6570\u306e\u540d\u524d\u3092\u5909\u3048\u3066\u5909\u5f62\u3057\u305f\u3089\u6700\u521d\u306e\u65b9\u7a0b\u5f0f\u3068\u540c\u3058\u306b\u306a\u308b\u304b\u3089\u3069\u3063\u3061\u3067\u3082\u3044\u3044\u3068\u3044\u3048\u3070\u305d\u3046\u306a\u306e\u3060\u304c\u3001\u7591\u554f\u306b\u601d\u3063\u305f\u306e\u306f\u3001\u5f8c\u8005\u306e\u5f0f\u306b\u5bfe\u3057\u3066\u4f55\u3082\u611f\u3058\u306a\u3044\u306e\u3060\u308d\u3046\u304b\u3068\u3044\u3046\u3053\u3068\u3067\u3042\u308b\u3002\u5177\u4f53\u7684\u306b\u3044\u3048\u3070\u3001\u7f8e\u3057\u304f\u611f\u3058\u306a\u3044\u306e\u304b\u3068\u3044\u3046\u3053\u3068\u3060\u3002<\/p>\n<p>\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3067\u3082\u7f8e\u7684\u611f\u899a\u304c\u554f\u308f\u308c\u308b\u3053\u3068\u304c\u3042\u308b\u3002\u7f8e\u3057\u3044\u30d7\u30ed\u30b0\u30e9\u30e0\u3068\u306f\u4f55\u304b\u3068\u3044\u3046\u30c6\u30fc\u30de\u306f\u304b\u306a\u308a\u5965\u304c\u6df1\u3044\u3002\u3053\u308c\u306f\u304d\u308c\u3044\u306b\u63c3\u3048\u3088\u3046\u3068\u304b\u3001\u51e6\u7406\u306e\u307e\u3068\u307e\u308a\u3054\u3068\u306b\u7a7a\u884c\u3092\u5165\u308c\u3066\u898b\u3084\u3059\u304f\u3057\u3088\u3046\u3068\u304b\u3001\u305d\u3093\u306a\u8a71\u3067\u306f\u306a\u3044\u3002\u30ed\u30b8\u30ab\u30eb\u306a\u90e8\u5206\u304c\u7f8e\u3057\u3044\u304b\u3069\u3046\u304b\u3068\u3044\u3046\u8a71\u306a\u306e\u3067\u3042\u308b\u3002<\/p>\n<p>\u306a\u305c\u305d\u308c\u304c\u91cd\u8981\u306a\u306e\u304b\u3068\u3044\u3046\u3068\u3001\u7d4c\u9a13\u7684\u306b\u3001\u7f8e\u3057\u3044\u30d7\u30ed\u30b0\u30e9\u30e0\u306f\u52b9\u7387\u304c\u826f\u304f\u3001\u30d0\u30b0\u304c\u306a\u304f\u3001\u4fdd\u5b88\u6027\u304c\u3088\u3044\u3001\u305d\u3046\u3044\u3046\u3082\u306e\u304c\u591a\u3044\u3068\u611f\u3058\u3066\u3044\u308b\u304b\u3089\u3067\u3042\u308b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u305d\u3093\u306a\u306b\u5927\u8888\u88df\u306a\u8a71\u3067\u306f\u306a\u3044\u304c\u3001\u3042\u308b\u8cea\u554f\u306e\u4e2d\u30672\u70b9(a,b)\u3001(c,d)\u3092\u901a\u308b\u76f4\u7dda &hellip; 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