{"id":22065,"date":"2018-12-27T08:20:13","date_gmt":"2018-12-26T23:20:13","guid":{"rendered":"https:\/\/club.informatix.co.jp\/?p=22065"},"modified":"2025-07-26T08:20:41","modified_gmt":"2025-07-25T23:20:41","slug":"%e3%82%b3%e3%83%b3%e3%83%94%e3%83%a5%e3%83%bc%e3%82%bf%e3%83%bc%e3%81%ae%e7%88%b6%e3%80%81%e3%83%81%e3%83%a3%e3%83%bc%e3%83%ab%e3%82%ba%e3%83%bb%e3%83%90%e3%83%99%e3%83%83%e3%82%b8%ef%bd%9c%e5%b9%bb","status":"publish","type":"post","link":"https:\/\/club.informatix.co.jp\/?p=22065","title":{"rendered":"\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u306e\u7236\u3001\u30c1\u30e3\u30fc\u30eb\u30ba\u30fb\u30d0\u30d9\u30c3\u30b8\uff5c\u5e7b\u306e\u968e\u5dee\u6a5f\u95a2\u30fb\u89e3\u6790\u6a5f\u95a2"},"content":{"rendered":"\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_83 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u76ee\u6b21<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a13b70f15445\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a13b70f15445\" checked aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/club.informatix.co.jp\/?p=22065\/#%E6%95%B0%E8%A1%A8%E3%82%92%E4%BD%9C%E3%82%8A%E7%B6%9A%E3%81%91%E3%82%8B%E4%BA%BA%E9%A1%9E\" >\u6570\u8868\u3092\u4f5c\u308a\u7d9a\u3051\u308b\u4eba\u985e<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/club.informatix.co.jp\/?p=22065\/#%E3%83%8D%E3%82%A4%E3%83%94%E3%82%A2%E3%81%AE%E5%AF%BE%E6%95%B0%E8%A1%A8%E3%81%8B%E3%82%89200%E5%B9%B4%E5%BE%8C%E3%80%81%E5%A4%A9%E6%89%8D%E5%87%BA%E7%8F%BE\" >\u30cd\u30a4\u30d4\u30a2\u306e\u5bfe\u6570\u8868\u304b\u3089200\u5e74\u5f8c\u3001\u5929\u624d\u51fa\u73fe<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/club.informatix.co.jp\/?p=22065\/#%E9%9A%8E%E5%B7%AE%E3%81%AE%E6%89%8B%E6%B3%95%EF%BC%88Method_of_differences%EF%BC%89\" >\u968e\u5dee\u306e\u624b\u6cd5\uff08Method of differences\uff09<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/club.informatix.co.jp\/?p=22065\/#%E9%9A%8E%E5%B7%AE%E6%A9%9F%E9%96%A2%EF%BC%88difference_engine%EF%BC%89\" >\u968e\u5dee\u6a5f\u95a2\uff08difference engine\uff09<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/club.informatix.co.jp\/?p=22065\/#%E8%A7%A3%E6%9E%90%E6%A9%9F%E9%96%A2%EF%BC%88analytical_engine%EF%BC%89\" >\u89e3\u6790\u6a5f\u95a2\uff08analytical engine\uff09<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/club.informatix.co.jp\/?p=22065\/#%E4%BA%BA%E3%81%AF%E6%AD%BB%E3%81%97%E3%81%A6%E6%95%B0%E8%A1%A8%E3%82%92%E9%81%BA%E3%81%99\" >\u4eba\u306f\u6b7b\u3057\u3066\u6570\u8868\u3092\u907a\u3059<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"%E6%95%B0%E8%A1%A8%E3%82%92%E4%BD%9C%E3%82%8A%E7%B6%9A%E3%81%91%E3%82%8B%E4%BA%BA%E9%A1%9E\"><\/span>\u6570\u8868\u3092\u4f5c\u308a\u7d9a\u3051\u308b\u4eba\u985e<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u4eca\u56de\u306f\u3001<a href=\"http:\/\/club.informatix.co.jp\/?p=7502\" target=\"_blank\" rel=\"noopener\">\u300c\u30a8\u30a4\u30c0\u30fb\u30e9\u30d6\u30ec\u30b9\u300d<\/a>\u306e\u8a18\u4e8b\u306b\u3082\u767b\u5834\u3057\u305f\u6570\u5b66\u8005\u30c1\u30e3\u30fc\u30eb\u30ba\u30fb\u30d0\u30d9\u30c3\u30b8\u3092\u53d6\u308a\u4e0a\u3052\u307e\u3059\u3002<\/p>\n<p>\u53e4\u4ee3\u30ae\u30ea\u30b7\u30e3\u304b\u3089\u4f5c\u3089\u308c\u59cb\u3081\u305f<a href=\"https:\/\/club.informatix.co.jp\/?p=5805\" target=\"_blank\" rel=\"noopener\">\u4e09\u89d2\u95a2\u6570<\/a>\u8868\u306f\u3001\u6642\u4ee3\u3092\u8ffd\u3046\u3054\u3068\u306b\u7cbe\u5ea6\u304c\u5927\u304d\u304f\u306a\u3063\u3066\u3044\u304d\u307e\u3057\u305f\u3002\u305d\u306e\u305f\u3081\u306b\u8a95\u751f\u3057\u305f\u306e\u304c\u30cd\u30a4\u30d4\u30a2\u306b\u3088\u308b\u5bfe\u6570\u8868\u3060\u3063\u305f\u3053\u3068\u306f<a href=\"http:\/\/club.informatix.co.jp\/?p=2660\" target=\"_blank\" rel=\"noopener\">\u300c\u30b8\u30e7\u30f3\u30fb\u30cd\u30a4\u30d4\u30a2\u5bfe\u6570\u8a95\u751f\u7269\u8a9e\u300d<\/a>\u3067\u7d39\u4ecb\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u4eba\u306f\u6b7b\u3057\u3066\u6570\u8868\u3092\u907a\u3059\u3002<\/p>\n<p>\u9b42\u3092\u524a\u3063\u3066\u4f5c\u3089\u308c\u305f\u6570\u8868\u306e\u304a\u304b\u3052\u3067\u3001\u591a\u304f\u306e\u4eba\u3005\u306e\u8a08\u7b97\u6642\u9593\u3092\u7bc0\u7d04\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\u3002<\/p>\n<h2><span class=\"ez-toc-section\" id=\"%E3%83%8D%E3%82%A4%E3%83%94%E3%82%A2%E3%81%AE%E5%AF%BE%E6%95%B0%E8%A1%A8%E3%81%8B%E3%82%89200%E5%B9%B4%E5%BE%8C%E3%80%81%E5%A4%A9%E6%89%8D%E5%87%BA%E7%8F%BE\"><\/span>\u30cd\u30a4\u30d4\u30a2\u306e\u5bfe\u6570\u8868\u304b\u3089200\u5e74\u5f8c\u3001\u5929\u624d\u51fa\u73fe<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u3068\u3053\u308d\u304c\u3001\u6570\u8868\u306e\u7cbe\u5ea6\u304c\u5927\u304d\u304f\u306a\u308b\u3068\u65b0\u305f\u306a\u554f\u984c\u3082\u5f15\u304d\u8d77\u3053\u3059\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u30df\u30b9\u304c\u306a\u3044\u6570\u8868\u3092\u4f5c\u308b\u3053\u3068\u306e\u56f0\u96e3\u3055\u3067\u3059\u3002\u3059\u3079\u3066\u306e\u8a08\u7b97\u306f\u4eba\u9593\u306e\u624b\u306b\u3088\u308b\u3082\u306e\u3060\u3063\u305f\u304b\u3089\u3067\u3059\u3002<\/p>\n<p>\u8a08\u7b97\u9053\u5177\u3068\u3044\u3063\u3066\u3082\u300118\u4e16\u7d00\u306e\u30e8\u30fc\u30ed\u30c3\u30d1\u3067\u306f\u30cd\u30a4\u30d4\u30a2\u306e\u8a08\u7b97\u68d2\uff08\u4e5d\u4e5d\u8868\u3092\u5370\u5b57\u3057\u305f\u68d2\uff09\u3084\u7b97\u76e4\u3060\u3051\u3067\u3057\u305f\u3002<\/p>\n<p>\u201ccomputer\u201d\u3068\u306f\u5143\u3005\u300c\u8a08\u7b97\u3059\u308b\u8005\uff08\u4eba\uff09\u300d\u3068\u3044\u3046\u610f\u5473\u3067\u3059\u304c\u3001\u201c\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u201d\u304c\u8a08\u7b97\u3057\u305f\u3082\u306e\u3092\u5370\u5237\u5de5\u304c\u6d3b\u5b57\u3092\u7d44\u3093\u3067\u5370\u5237\u3059\u308b\u3053\u3068\u3067\u6570\u8868\u306f\u4f5c\u6210\u3055\u308c\u307e\u3059\u3002\u305d\u306e\u3059\u3079\u3066\u306e\u30d7\u30ed\u30bb\u30b9\u3067\u30df\u30b9\u304c\u751f\u307e\u308c\u3066\u3057\u307e\u3046\u306e\u3067\u3059\u3002<\/p>\n<p>1812\u5e74\u3001\u9593\u9055\u3044\u3060\u3089\u3051\u306e\u5bfe\u6570\u8868\u3092\u773a\u3081\u306a\u304c\u3089\u300c\u305d\u3046\u3060\u3001\u6570\u8868\u4f5c\u6210\u3092\u3059\u3079\u3066\u6a5f\u68b0\u306b\u3084\u3089\u305b\u3088\u3046\u300d\u3068\u5947\u60f3\u5929\u5916\u306a\u30a2\u30a4\u30c7\u30a3\u30a2\u3092\u601d\u3044\u3064\u3044\u305f\u4eba\u304c\u3044\u307e\u3059\u3002<\/p>\n<p>\u305d\u306e\u4eba\u3053\u305d\u3001\u6570\u5b66\u8005\u30c1\u30e3\u30fc\u30eb\u30ba\u30fb\u30d0\u30d9\u30c3\u30b8\uff081791-1871\uff09\u3060\u3063\u305f\u306e\u3067\u3059\u3002<\/p>\n<p>\u88d5\u798f\u306a\u8cc7\u7523\u5bb6\u306e\u5bb6\u306b\u751f\u307e\u308c\u305f\u30d0\u30d9\u30c3\u30b8\u306f\u30011810\u5e74\u306b\u30b1\u30f3\u30d6\u30ea\u30c3\u30b8\u5927\u5b66\u30c8\u30ea\u30cb\u30c6\u30a3\u30fb\u30ab\u30ec\u30c3\u30b8\u306b\u5165\u5b66\u3057\u307e\u3059\u3002<\/p>\n<p>\u5b66\u751f\u6642\u4ee3\u306f\u30b1\u30f3\u30d6\u30ea\u30c3\u30b8\u5927\u5b66\u306b\u6d78\u900f\u3059\u308b\u30cb\u30e5\u30fc\u30c8\u30f3\u6d41\u5fae\u5206\u7a4d\u5206\u6cd5\u306b\u53cd\u767a\u3057\u3001\u5408\u7406\u7684\u306a\u30e9\u30a4\u30d7\u30cb\u30c3\u30c4\u6d41\u3092\u63a8\u3057\u9032\u3081\u308b\u305f\u3081\u306b\u4ef2\u9593\u3068\u89e3\u6790\u5354\u4f1a\uff08Analytical Society\uff09\u3092\u8a2d\u7acb\u3059\u308b\u307b\u3069\u3067\u3057\u305f\u3002\u5f8c\u306b\u3001\u30d0\u30d9\u30c3\u30b8\u306f\u30cb\u30e5\u30fc\u30c8\u30f3\u304c\u5ea7\u3063\u3066\u3044\u305f\u30eb\u30fc\u30ab\u30b9\u6559\u6388\u8077\u3092\u52d9\u3081\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>1812\u5e74\u300120\u6b73\u3092\u904e\u304e\u305f\u3070\u304b\u308a\u306e\u9752\u5e74\u30d0\u30d9\u30c3\u30b8\u306e\u982d\u8133\u306b\u6d6e\u304b\u3093\u3060\u30a2\u30a4\u30c7\u30a2\u304c\u300c\u6570\u8868\u81ea\u52d5\u4f5c\u6210\u30de\u30b7\u30f3\u300d\u3067\u3059\u3002<\/p>\n<h2><span class=\"ez-toc-section\" id=\"%E9%9A%8E%E5%B7%AE%E3%81%AE%E6%89%8B%E6%B3%95%EF%BC%88Method_of_differences%EF%BC%89\"><\/span>\u968e\u5dee\u306e\u624b\u6cd5\uff08Method of differences\uff09<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u4e09\u89d2\u95a2\u6570\u3084\u5bfe\u6570\u306e\u6570\u5024\u8a08\u7b97\u306b\u6709\u52b9\u306a\u306e\u304c<a href=\"https:\/\/club.informatix.co.jp\/?p=2448\" target=\"_blank\" rel=\"noopener\">\u30de\u30af\u30ed\u30fc\u30ea\u30f3\u7d1a\u6570<\/a>\u3067\u3059\u3002\u30de\u30af\u30ed\u30fc\u30ea\u30f3\u7d1a\u6570\u306f\u591a\u9805\u5f0f\u306a\u306e\u3067x\u306en\u4e57\u2500\u2500\u304b\u3051\u7b97\u2500\u2500\u306e\u8a08\u7b97\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u5bfe\u6570\u306e\u30a2\u30a4\u30c7\u30a2\u306f\u3001\u307e\u3055\u306b\u304b\u3051\u7b97\u3092\u305f\u3057\u7b97\u3067\u884c\u3046\u753b\u671f\u7684\u306a\u8a08\u7b97\u65b9\u6cd5\u3067\u3057\u305f\u3002<\/p>\n<p>\u30d0\u30d9\u30c3\u30b8\u304c\u300c\u6b6f\u8eca\u300d\u3092\u7528\u3044\u305f\u6a5f\u68b0\u3092\u8003\u3048\u305f\u306e\u306f\u3001\u5bfe\u6570\u306b\u4ee3\u308f\u308b\u304b\u3051\u7b97\u3092\u305f\u3057\u7b97\u3067\u884c\u3046\u65b9\u6cd5\u3092\u77e5\u3063\u3066\u3044\u305f\u304b\u3089\u3067\u3059\u3002\u968e\u5dee\u306e\u624b\u6cd5\uff08Method of differences\uff09\u3068\u547c\u3070\u308c\u308b\u6570\u5024\u8a08\u7b97\u6cd5\u3067\u3059\u3002<\/p>\n<p>\u4ee5\u4e0b\u306b\u5177\u4f53\u7684\u306a\u305d\u306e\u8a08\u7b97\u65b9\u6cd5\u3092\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<p>\u6700\u521d\u306e\u4f8b\u306f\u3001\u30d0\u30d9\u30c3\u30b8\u81ea\u8eab\u3082\u7528\u3044\u305f\u591a\u9805\u5f0ff(x)=x<sup>2<\/sup>+x+41\u3067\u3059\u3002\u30b9\u30c6\u30c3\u30d7\u306f\u8868\u306b\u3059\u308b\u3053\u3068\u3067\u5206\u304b\u308a\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u5148\u306b\u7d50\u8ad6\u3092\u898b\u3066\u307f\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-7666\" src=\"http:\/\/club.informatix.co.jp\/wp-content\/uploads\/sites\/2\/2018\/12\/20181227_1.jpg\" alt=\"\" width=\"550\" height=\"244\" \/>\u7b2c1\u968e\u5deeD1(x)\u3068\u7b2c2\u968e\u5deeD2(x)\u304c\u30dd\u30a4\u30f3\u30c8\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u6570\u8868\u3092\u3001\u5358\u7d14\u306a\u305f\u3057\u7b97\u3001\u3072\u304d\u7b97\u3060\u3051\u3067\u773a\u3081\u3066\u3044\u308b\u3068\u3001\u305d\u308c\u305e\u308c\u3069\u306e\u3088\u3046\u306a\u30eb\u30fc\u30eb\u3067\u8a08\u7b97\u3055\u308c\u3066\u3044\u308b\u306e\u304b\u304c\u5206\u304b\u3063\u3066\u304d\u307e\u3059\u3002<\/p>\n<p>D1(x)\u3068D2(x)\u306f\u6b21\u306e\u3088\u3046\u306b\u5b9a\u7fa9\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u7b2c1\u968e\u5dee\u3000D1(x)=f(x+1)-f(x)<br \/>\n\u7b2c2\u968e\u5dee\u3000D2(x)= D1(x+1)-D1(x)<\/p>\n<p>\u305d\u308c\u3067\u306f\u7a7a\u6b04\u306e\u8868\u304b\u3089\u9806\u306b\u7a7a\u6b04\u3092\u57cb\u3081\u3066\u3044\u304d\u307e\u3059\u3002x\u304c0\u306e\u6b04\u306b\u4e0a\u304b\u308941\u30012\u30012\u3068\u5165\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u304c\u521d\u671f\u5024\uff08x=0\u306e\u6570\u5024\uff09\u306b\u306a\u308b\u306e\u3067\u3059\u304c\u3001\u6b21\u306e\u3088\u3046\u306b\u8a08\u7b97\u3055\u308c\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-7667\" src=\"http:\/\/club.informatix.co.jp\/wp-content\/uploads\/sites\/2\/2018\/12\/20181227_2.jpg\" alt=\"\" width=\"550\" height=\"244\" \/>2\u6b21\u591a\u9805\u5f0f\u3000f(x)=a+bx+cx<sup>2<\/sup>\u306e\u5834\u5408\u306e\u521d\u671f\u5024\uff08x=0\u306e\u6570\u5024\uff09<br \/>\nf(0)=a<br \/>\nD1(0)=f(1)-f(0)<br \/>\n=(a+b+c)-a<br \/>\n=b+c<br \/>\nD2(0)=D1(1)-D1(0)<br \/>\n=f(2)-f(1)-(b+c)<br \/>\n=a+2b+4c-(a+b+c)-(b+c)<br \/>\n=2c<\/p>\n<p>\u3053\u306e\u516c\u5f0f\u304b\u3089\u3001f(x)=41+x+x<sup>2<\/sup>\uff08a=41\u3001b=1\u3001c=1\uff09\u306e\u521d\u671f\u5024\uff08x=0\u306e\u6570\u5024\uff09\u306f<br \/>\nf(0)=a=41<br \/>\nD1(0)=b+c=1+1=2<br \/>\nD2(0)=2c=2<br \/>\n\u3068\u6c42\u307e\u308a\u307e\u3059\u3002<\/p>\n<p>\u3059\u308b\u3068\u3001\u6b21\u306b\u3053\u306e\u521d\u671f\u5024\u304b\u3089\u305f\u3057\u7b97\u3060\u3051\u3067x=1\u306e3\u3064\u306e\u6570\u5024\u304c\u6b21\u306e\u3088\u3046\u306b\u6c42\u307e\u308a\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-7668\" src=\"http:\/\/club.informatix.co.jp\/wp-content\/uploads\/sites\/2\/2018\/12\/20181227_3.jpg\" alt=\"\" width=\"550\" height=\"244\" \/><\/p>\n<p>\u7b2c2\u968e\u5dee\u3000D2(x)= D1(x+1)-D1(x)<br \/>\n\u3088\u308a\u3001<br \/>\nD1(x+1)=D2(x)+D1(x)<br \/>\n\u3060\u304b\u3089\u3001x=0\u3068\u3057\u3066<br \/>\nD1(1)=D2(0)+D1(0)=2+2=4<br \/>\n\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u6b21\u306b<br \/>\n\u7b2c1\u968e\u5dee\u3000D1(x)=f(x+1)-f(x)<br \/>\n\u3088\u308a\u3001<br \/>\nf(x+1)=f(x) +D1(x)<br \/>\n\u3060\u304b\u3089\u3001x=0\u3068\u3057\u3066<br \/>\nf(1)=f(0) +D1(0)=41+2=43<br \/>\n\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u3088\u3046\u306bx=0\u306e3\u3064\u306e\u6570\u5024\u304b\u3089x=1\u306e3\u3064\u306e\u6570\u5024\u304c\u305f\u3057\u7b97\u3060\u3051\u3067\u8a08\u7b97\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u540c\u69d8\u306bx=2\u306e3\u3064\u306e\u6570\u5024\u304c\u305f\u3057\u7b97\u3060\u3051\u3067\u8a08\u7b97\u3055\u308c\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-7669\" src=\"http:\/\/club.informatix.co.jp\/wp-content\/uploads\/sites\/2\/2018\/12\/20181227_4.jpg\" alt=\"\" width=\"550\" height=\"244\" \/><\/p>\n<p>\u3053\u3053\u3067\u6c17\u3065\u304f\u91cd\u8981\u306a\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u7b2c2\u968e\u5dee\u306f\u3059\u3079\u3066\u5b9a\u65702\u3067\u3042\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002\u3053\u306e\u3053\u3068\u304b\u3089\u3001\u7b2c1\u968e\u5dee\u3068f(x)\u304c\u9806\u306b\u6c42\u307e\u3063\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<p>\u7b2c2\u968e\u5dee\u306f\u3059\u3079\u3066\u5b9a\u65702\u3067\u3042\u308b\u3053\u3068\u306f\u3001\u5fae\u5206\u306e\u8a08\u7b97\u304b\u3089\u7406\u89e3\u3055\u308c\u307e\u3059\u3002f(x)=x<sup>2<\/sup>+x+41\u3092\u5fae\u5206\u3059\u308b\u3068f'(x)=2x+1\u3068\u306a\u308a\u3001\u3055\u3089\u306b\u5fae\u5206\u3059\u308b\u3068f&#8221;(x)=2\u3068\u306a\u308a\u307e\u3059\u30022\u6b21\u95a2\u6570\u306e2\u968e\u5fae\u5206f&#8221;(x)\u304c\u5b9a\u6570\u306b\u306a\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<\/p>\n<p>\u6b8b\u308a\u306e\u7a7a\u9593\u3092\u57cb\u3081\u3066\u3044\u3063\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002f(x)\u306b\u306fx\u306e2\u4e57\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u305f\u3057\u7b97\u3060\u3051\u3067f(1)\u3001f(2)\u3001f(3)\u3001\u2026\u3068\u9806\u306b\u6c42\u307e\u3063\u3066\u3044\u304f\u3053\u3068\u304c\u5206\u304b\u308a\u307e\u3059\u3002<\/p>\n<p>\u3068\u3053\u308d\u3067\u3053\u306e2\u6b21\u591a\u9805\u5f0fx<sup>2<\/sup>+x+41\u306f\u3001\u30aa\u30a4\u30e9\u30fc\u304c\u7d20\u6570\u751f\u6210\u5f0f\u3068\u3057\u3066\u767a\u898b\u3057\u305f\u3082\u306e\u3067\u3001x=0\u304b\u308939\u307e\u3067\u3059\u3079\u3066\u7d20\u6570\u306b\u306a\u308b\u8208\u5473\u6df1\u3044\u5f0f\u3067\u3059\u3002\u30d0\u30d9\u30c3\u30b8\u306f\u305d\u306e\u3053\u3068\u3092\u77e5\u3063\u3066\u3044\u305f\u306e\u3067\u3057\u3087\u3046\u3002<\/p>\n<p>\u6b21\u3044\u3067\u306b\u6b21\u6570\u3092\u4e0a\u3052\u305f\u4f8b\u3092\u3082\u3046\u4e00\u3064\u7d39\u4ecb\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<br \/>\n4\u6b21\u591a\u9805\u5f0ff(x)=x<sup>4<\/sup>+2x<sup>3<\/sup>-4x<sup>2<\/sup>+7x+6\uff08a=6\u3001b=7\u3001c=-4\u3001d=2\u3001e=1\uff09<\/p>\n<p>\u307e\u305a\u3001\u521d\u671f\u5024\u3000f(x)=a+bx+cx<sup>2<\/sup>+dx<sup>3<\/sup>+ex<sup>4<\/sup>\u306e\u8a08\u7b97<br \/>\nf(0)=a=6<br \/>\n\u7b2c1\u968e\u5deeD1(0)=b+c+d+e=7-4+2+1=6<br \/>\n\u7b2c2\u968e\u5deeD2(0)=2c+6d+14e=-8+12+14=18<br \/>\n\u7b2c3\u968e\u5deeD3(0)=6d+36e=12+36=48<br \/>\n\u7b2c4\u968e\u5deeD4(0)=24\uff084\u968e\u5fae\u5206\uff09<\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-7670\" src=\"http:\/\/club.informatix.co.jp\/wp-content\/uploads\/sites\/2\/2018\/12\/20181227_5g.jpg\" alt=\"\" width=\"550\" height=\"318\" \/><\/p>\n<p>\u3042\u3068\u306f\u6700\u521d\u306e2\u6b21\u95a2\u6570\u306e\u8a08\u7b97\u3092\u771f\u4f3c\u3066x=1\u30012\u30013\u3001\u2026\u3068\u6e96\u5099\u8a08\u7b97\u3057\u3066\u3044\u304d\u307e\u3059\u3002\u6b21\u306e\u3088\u3046\u306b\u7a7a\u6b04\u304c\u57cb\u307e\u3063\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-7671\" src=\"http:\/\/club.informatix.co.jp\/wp-content\/uploads\/sites\/2\/2018\/12\/20181227_6.jpg\" alt=\"\" width=\"550\" height=\"318\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"%E9%9A%8E%E5%B7%AE%E6%A9%9F%E9%96%A2%EF%BC%88difference_engine%EF%BC%89\"><\/span><span id=\"%E9%9A%8E%E5%B7%AE%E6%A9%9F%E9%96%A2%EF%BC%88difference_engine%EF%BC%89\" class=\"ez-toc-section\"><\/span>\u968e\u5dee\u6a5f\u95a2\uff08difference engine\uff09<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u968e\u5dee\uff08difference\uff09\u306e\u624b\u6cd5\u3092\u5b9f\u73fe\u3055\u305b\u308b\u30de\u30b7\u30f3\u3068\u3057\u3066\u30d0\u30d9\u30c3\u30b8\u304c\u8a2d\u8a08\u3057\u305f\u306e\u304c\u968e\u5dee\u6a5f\u95a2\uff08difference engine\uff09\u3067\u3059\u3002<\/p>\n<p>1822\u5e74\u300131\u6b73\u306e\u30d0\u30d9\u30c3\u30b8\u306f\u8ad6\u6587&#8221;Note on the application of machinery to the computation of astronomical and mathematical tables&#8221;\uff08\u5929\u6587\u66a6\u3068\u6570\u8868\u306e\u8a08\u7b97\u3078\u306e\u6a5f\u68b0\u306e\u9069\u7528\u306b\u95a2\u3059\u308b\u899a\u66f8\uff09\u306e\u4e2d\u3067\u8a00\u53ca\u3057\u305fmachinery\u3053\u305d\u3001\u968e\u5dee\u6a5f\u95a2\u3067\u3059\u3002<\/p>\n<p>\u968e\u5dee\uff08difference\uff09\u306e\u624b\u6cd5\u3092\u5b9f\u969b\u306b\u5b9f\u884c\u3057\u3066\u307f\u308b\u3068\u5206\u304b\u308a\u307e\u3059\u304c\u3001f(10)\u306e\u6570\u5024\u3092\u6c42\u3081\u308b\u306b\u306f\u3001x=1\u30012\u3001\uff13\u3001\u2026\u30019\u300110\u3068\u9014\u4e2d\u306e\u3059\u3079\u3066\u306e\u8a08\u7b97\u304c\u5fc5\u8981\u3067\u3042\u308b\u3053\u3068\u304c\u7279\u5fb4\u3067\u3059\u3002<\/p>\n<p>\u3053\u308c\u306f\u4e0d\u4fbf\u306b\u3082\u601d\u3048\u307e\u3059\u304c\u3001\u30d0\u30d9\u30c3\u30b8\u306e\u76ee\u6a19\u306f\u3042\u304f\u307e\u3067\u3082\u6570\u8868\u4f5c\u6210\u306a\u306e\u3067\u3053\u308c\u3067\u3044\u3044\u306e\u3067\u3059\u3002<\/p>\n<p>\u3053\u3053\u306b\u6570\u8868\u81ea\u52d5\u4f5c\u6210\u30de\u30b7\u30f3\u306e\u9a5a\u304f\u3079\u304d\u80fd\u529b\u304c\u3042\u308a\u307e\u3059\u3002\u5370\u5237\u6a5f\u80fd\u3067\u3059\u3002\u6570\u8868\u306f\u7d19\u306b\u5370\u5237\u3055\u308c\u3066\u5b8c\u6210\u3067\u3059\u3002<\/p>\n<p>\u30d0\u30d9\u30c3\u30b8\u306e\u30de\u30b7\u30f3\u3068\u306f\u3001\u81ea\u52d5\u3067\u8a08\u7b97\u3092\u884c\u3044\u3001\u305d\u306e\u7d50\u679c\u3092\u81ea\u52d5\u3067\u5370\u5237\u3057\u3066\u6570\u8868\u304c\u30d7\u30ea\u30f3\u30c8\u30a2\u30a6\u30c8\u3055\u308c\u308b\u3068\u3044\u3046\u4ee3\u7269\u3060\u3063\u305f\u306e\u3067\u3059\u3002<\/p>\n<p>\u968e\u5dee\u6a5f\u95a2\u306e\u958b\u767a\u306e\u305f\u3081\u306b\u3001\u82f1\u56fd\u653f\u5e9c\u306b\u3088\u308b\u8cc7\u91d1\u7d0417,000\u30dd\u30f3\u30c9\u3068\u540c\u984d\u306e\u81ea\u5df1\u8cc7\u91d1\u3092\u3064\u304e\u8fbc\u307f\u307e\u3057\u305f\u304c\u3001\u30d0\u30d9\u30c3\u30b8\u81ea\u8eab\u306f\u968e\u5dee\u6a5f\u95a2\u3092\u5b8c\u6210\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u305a\u30011833\u5e74\u306b\u88fd\u4f5c\u306f\u4e2d\u6b62\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n<p>\u305d\u306e\u539f\u56e0\u306e\u4e00\u3064\u306f\u3001\u30d0\u30d9\u30c3\u30b8\u304c\u968e\u5dee\u6a5f\u95a2\u306e\u958b\u767a\u306e\u6700\u4e2d\u306b\u3055\u3089\u306b\u9ad8\u5ea6\u306a\u30de\u30b7\u30f3\u3092\u8003\u6848\u3057\u305f\u3053\u3068\u306b\u3042\u308a\u307e\u3059\u3002<\/p>\n<h2><span class=\"ez-toc-section\" id=\"%E8%A7%A3%E6%9E%90%E6%A9%9F%E9%96%A2%EF%BC%88analytical_engine%EF%BC%89\"><\/span>\u89e3\u6790\u6a5f\u95a2\uff08analytical engine\uff09<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u30d0\u30d9\u30c3\u30b8\u304c\u89e3\u6790\u6a5f\u95a2\uff08analytical engine\uff09\u3068\u547c\u3093\u3060\u30de\u30b7\u30f3\u306f\u3001\u6570\u5024\u8a18\u61b6\u3068\u6f14\u7b97\u90e8\u5206\u3092\u5206\u3051\u305f\u69cb\u9020\u3067\u3057\u305f\u3002<\/p>\n<p>\u30d7\u30ed\u30b0\u30e9\u30e0\u3068\u30c7\u30fc\u30bf\u306e\u5165\u529b\u7528\u306b\u30d1\u30f3\u30c1\u30ab\u30fc\u30c9\u3092\u5099\u3048\u3001\u5370\u5237\u539f\u7248\u4f5c\u6210\u6a5f\u3068\u66f2\u7dda\u30d7\u30ed\u30c3\u30bf\u30fc\u3092\u51fa\u529b\u88c5\u7f6e\u3068\u3057\u305f\u3082\u306e\u3067\u3001\u52d5\u529b\u6e90\u3068\u3057\u3066\u84b8\u6c17\u6a5f\u95a2\u3092\u7528\u3044\u308b\u3068\u3044\u3046\u30e2\u30f3\u30b9\u30bf\u30fc\u30de\u30b7\u30f3\u3067\u3059\u3002<\/p>\n<p>\u30d0\u30d9\u30c3\u30b8\u306f\u88fd\u4f5c\u306b\u53d6\u308a\u304b\u304b\u308b\u3082\u3001\u3053\u3061\u3089\u3082\u5b9f\u969b\u306b\u306f\u5b8c\u6210\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093\u3067\u3057\u305f\u3002<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-medium wp-image-9061\" 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