{"id":10795,"date":"2026-07-16T08:30:00","date_gmt":"2026-07-15T23:30:00","guid":{"rendered":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/?page_id=10795"},"modified":"2026-07-09T09:52:03","modified_gmt":"2026-07-09T00:52:03","slug":"p1401a","status":"publish","type":"page","link":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/lecture\/prog\/practice-advance\/p14\/p1401a\/","title":{"rendered":"\u7df4\u7fd2 [14] \u5f8c\u534a\u306e\u5fa9\u7fd2\uff081\/5\uff09"},"content":{"rendered":"<div class=\"breadcrumbs align wp-block-bcn-breadcrumb-trail has-text-color has-background\" vocab=\"https:\/\/schema.org\/\" typeof=\"BreadcrumbList\">\n\t<span><\/span>\n\t<span property=\"itemListElement\" typeof=\"ListItem\"><a property=\"item\" typeof=\"WebPage\" title=\"Go to \u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u5de5\u5b66\u7814\u7a76\u5ba4.\" href=\"https:\/\/se.cite.ehime-u.ac.jp\/jp\" class=\"home\" aria-current=\"page\"><span property=\"name\">\u30db\u30fc\u30e0<\/span><\/a><meta property=\"position\" content=\"1\"><\/span><\/div>\n\n\n\n<h4 class=\"wp-block-heading has-light-green-cyan-background-color has-background\"><strong>\u7df4\u7fd2 1<\/strong>\uff08\u63d0\u51fa\u30d7\u30ed\u30b0\u30e9\u30e0\u540d\uff1ap1401a.c\uff09<\/h4>\n\n\n\n<p class=\"problem wp-block-paragraph\">\u307e\u305a\uff0c<a href=\"\/lecture\/prog\/material\/p1401a.c\" target=\"_blank\" rel=\"noreferrer noopener\">\u3053\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\uff08p1401a.c\uff09<\/a>\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u306a\u3055\u3044\uff0e<br>p1401a.c \u3067\u306f\u300c<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-red-color\">2 \u306e\u5e73\u65b9\u6839\uff08\\(\\sqrt{2}\\)\uff09<\/mark><\/strong>\u300d\u3092<strong>\u6574\u6570\u306e\u6bd4<\/strong> <strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-red-color\"><kbd>n<\/kbd>\/<kbd>d<\/kbd> \u3067\u8fd1\u4f3c<\/mark><\/strong>\u3057\u3088\u3046\u3068\u3057\u3066\u3044\u308b\uff0e<br>\u5177\u4f53\u7684\u306b\u306f\uff0c<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-strong-blue-color\">\u5206\u6bcd\u306b\u76f8\u5f53\u3059\u308b <kbd>d<\/kbd> \u304c\u4e0e\u3048\u3089\u308c\u305f\u6642<\/mark><\/strong>\uff0c<br><kbd>n<\/kbd>\/<kbd>d<\/kbd> \u304c<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-red-color\">\u6700\u3082<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-red-color\">\\(\\sqrt{2}\\)<\/mark><\/strong> \u306b\u8fd1\u304f\u306a\u308b <kbd>n<\/kbd><\/mark><\/strong> \u3092\u4ee5\u4e0b\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3067\u898b\u3064\u3051\u51fa\u305d\u3046\u3068\u3057\u3066\u3044\u308b\uff0e<br>\u306a\u304a\uff0c\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u306f\u3053\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092 <kbd>get_numerator<\/kbd> \u3068\u3044\u3046\u540d\u524d\u306e\u95a2\u6570\u3067<br>\u5b9f\u88c5\u3057\u3088\u3046\u3068\u3057\u3066\u3044\u308b\u304c\u672a\u5b8c\u6210\u3068\u306a\u3063\u3066\u3044\u308b\uff0e<br><strong>\u3053\u306e\u95a2\u6570\u3092\u5b8c\u6210<\/strong>\u3055\u305b\u306a\u3055\u3044\uff0e\u305f\u3060\u3057\uff0c<mark style=\"background-color:#fffcda\" class=\"has-inline-color\"><kbd>main<\/kbd> \u95a2\u6570\u306e\u5185\u5bb9\u306f\u4e00\u5207\u5909\u66f4\u3057\u306a\u3044<\/mark>\u3053\u3068\uff0e<br><br>\u3053\u306e\u554f\u984c\u3067\u306f <kbd>n<\/kbd>, <kbd>d<\/kbd> \u3068\u3082\u6b63\u306e\u6574\u6570\u3067\u3042\u308b\u3068\u4eee\u5b9a\u3057\u3066\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4f5c\u3063\u3066\u3088\u3044\uff0e<br>\u306a\u304a\uff0c<kbd>sqrt<\/kbd> \u3068\u3044\u3063\u305f\u6570\u5b66\u8a08\u7b97\u7528\u306e\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u95a2\u6570\u3092\u4f7f\u3063\u3066\u306f\u3044\u3051\u307e\u305b\u3093\uff0e<br><br><strong>\u3010\u5b9f\u88c5\u3059\u3079\u304d\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3011<\/strong><br>(1) <kbd>n<\/kbd> \u2190 <kbd>1<\/kbd> \u3068\u3059\u308b\uff0e<br>(2) <kbd>x<\/kbd> \u2190 <kbd>n\/d<\/kbd> \u3068\u3057\uff0c<br> \u3000 <kbd>y<\/kbd> \u2190 <kbd>(n-1)\/d<\/kbd> \u3068\u3059\u308b\uff0e<br>\u3000\u305f\u3060\u3057\uff0c<kbd>x<\/kbd> \u3068 <kbd>y<\/kbd> \u306f double \u578b\u3068\u3057\uff0c<br>\u3000\u5272\u308a\u7b97\u306e\u5c0f\u6570\u70b9\u4ee5\u4e0b\u304c<strong>\u5207\u308a\u6368\u3066\u3089\u308c\u308b\u3053\u3068\u306e<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-red-color\">\u306a\u3044<\/mark><\/strong>\u3088\u3046\u306b\u305b\u3088\uff0e<br>(3) <mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-red-color\"><kbd>x*x<\/kbd> \u304c <kbd>2<\/kbd> \u3088\u308a\u5c0f\u3055\u3044\u9650\u308a<\/mark>\u6b21\u306e(3-1)\uff0c(3-2)\uff0c(3-3) \u3092\u7e70\u308a\u8fd4\u3059\uff1a<br>\u3000\u3000(3-1) <kbd>n<\/kbd> \u2190 <kbd>n + 1<\/kbd> \u3068\u3059\u308b\uff0e<br>\u3000\u3000(3-2) <kbd>y<\/kbd> \u2190 <kbd>x<\/kbd> \u3068\u3059\u308b\uff0e<br>\u3000\u3000(3-3) <kbd>x<\/kbd> \u2190 <kbd>n\/d<\/kbd> \u3068\u3059\u308b\uff0e<br>(4) \u3053\u306e\u6642\u70b9\uff08\u4e0a\u306e\u7e70\u308a\u8fd4\u3057\u304c\u7d42\u4e86\u3057\u305f\u6642\u70b9\uff09\u3067 <br>\u3000<kbd><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-strong-blue-color\">x<\/mark><\/kbd> (=<kbd>n\/d<\/kbd>) \u306f<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-strong-blue-color\">\\(\\sqrt{2}\\) \u4ee5\u4e0a\u306e\u6700\u5c0f\u306e\u8fd1\u4f3c\u5024<\/mark>\u3067\u3042\u308a\uff0c<br>\u3000<kbd><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-green-color\">y<\/mark><\/kbd>(=<kbd>(n-1)\/d<\/kbd>) \u306f<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-green-color\">\\(\\sqrt{2}\\)\u672a\u6e80\u306e\u6700\u5927\u306e\u8fd1\u4f3c\u5024<\/mark>\u3067\u3042\u308b\uff0e<br>\u3000\u305d\u3053\u3067\uff0c<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-red-color\"><kbd>x<\/kbd> \u3068 <kbd>y<\/kbd> \u306e\u3069\u3061\u3089\u304c\u6b63\u89e3\u306b\u8fd1\u3044\u304b<\/mark>\u3092\u8abf\u3079\u308b\uff0e<br>\u3000\u3082\u3057\u3082 <kbd><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-red-color\">(x*x-2) &lt; (2-y*y)<\/mark><\/strong><\/kbd> \u306a\u3089\u3070 <kbd>x<\/kbd> \u306e\u65b9\u304c\u8fd1\u3044\u306e\u3067 <strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-red-color\"><kbd>n<\/kbd> \u3092 return<\/mark><\/strong> \u3059\u308b\uff0e<br>\u3000<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-strong-blue-color\">\u3055\u3082\u306a\u304f\u3070<\/mark> <kbd>y<\/kbd> \u306e\u65b9\u304c\u8fd1\u3044\u306e\u3067 <strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-strong-blue-color\"><kbd>n-1<\/kbd> \u3092 return<\/mark><\/strong> \u3059\u308b\uff0e<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u3010\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u5b9f\u884c\u4f8b\u3011\uff08\u305d\u306e\uff11\uff09<\/strong>\u203b<span style=\"color:#ff0000\" class=\"has-inline-color\">\u8d64\u5b57<\/span>\u306f\u5b9f\u884c\u6642\u306b\u30ad\u30fc\u30dc\u30fc\u30c9\u304b\u3089\u5165\u529b\u3059\u308b\u5185\u5bb9<\/li>\n<\/ul>\n\n\n\n<pre class=\"example\" style=\"width: 400px; margin-top: -15pt; margin-bottom: 10px;\">2 \u306e\u5e73\u65b9\u6839\u3092\u6709\u7406\u6570\u3067\u8fd1\u4f3c\u3057\u307e\u3059<span style=\"color:#00aa00\">\u23ce<\/span>\n\u8fd1\u4f3c\u3059\u308b\u6709\u7406\u6570\u306e\u5206\u6bcd\u3092\u6307\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\uff1a<span class=\"has-inline-color\" style=\"color: #ff0000;\">70<\/span>\n\u8fd1\u4f3c\u5024\u306f 99\/70 = 1.414286<span style=\"color:#00aa00\">\u23ce<\/span>\n\n<\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u3010\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u5b9f\u884c\u4f8b\u3011\uff08\u305d\u306e\uff12\uff09<\/strong>\u203b<span style=\"color: #ff0000;\" class=\"has-inline-color\">\u8d64\u5b57<\/span>\u306f\u5b9f\u884c\u6642\u306b\u30ad\u30fc\u30dc\u30fc\u30c9\u304b\u3089\u5165\u529b\u3059\u308b\u5185\u5bb9<\/li>\n<\/ul>\n\n\n\n<pre class=\"example\" style=\"width: 400px; margin-top: -15pt; margin-bottom: 10px;\">2 \u306e\u5e73\u65b9\u6839\u3092\u6709\u7406\u6570\u3067\u8fd1\u4f3c\u3057\u307e\u3059<span style=\"color:#00aa00\">\u23ce<\/span>\n\u8fd1\u4f3c\u3059\u308b\u6709\u7406\u6570\u306e\u5206\u6bcd\u3092\u6307\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\uff1a<span class=\"has-inline-color\" style=\"color: #ff0000;\">577<\/span>\n\u8fd1\u4f3c\u5024\u306f 816\/577 = 1.414211<span style=\"color:#00aa00\">\u23ce<\/span>\n\n<\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u3010\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u5b9f\u884c\u4f8b\u3011\uff08\u305d\u306e\uff13\uff09<\/strong>\u203b<span style=\"color: #ff0000;\" class=\"has-inline-color\">\u8d64\u5b57<\/span>\u306f\u5b9f\u884c\u6642\u306b\u30ad\u30fc\u30dc\u30fc\u30c9\u304b\u3089\u5165\u529b\u3059\u308b\u5185\u5bb9<\/li>\n<\/ul>\n\n\n\n<pre class=\"example\" style=\"width: 400px; margin-top: -15pt; margin-bottom: 10px;\">2 \u306e\u5e73\u65b9\u6839\u3092\u6709\u7406\u6570\u3067\u8fd1\u4f3c\u3057\u307e\u3059<span style=\"color:#00aa00\">\u23ce<\/span>\n\u8fd1\u4f3c\u3059\u308b\u6709\u7406\u6570\u306e\u5206\u6bcd\u3092\u6307\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\uff1a<span class=\"has-inline-color\" style=\"color: #ff0000;\">985<\/span>\n\u8fd1\u4f3c\u5024\u306f 1393\/985 = 1.414213<span style=\"color:#00aa00\">\u23ce<\/span>\n\n<\/pre>\n\n\n\n<p class=\"miss wp-block-paragraph\"><strong>\u3010\u904e\u53bb\u306b\u3042\u3063\u305f\u30df\u30b9\uff08\u6e1b\u70b9\u3068\u306a\u308a\uff0c\u3084\u308a\u76f4\u3057\u3092\u547d\u3058\u3089\u308c\u308b\uff09\u3011<\/strong> <br> \u25a0 <strong><mark style=\"background-color:rgba(0, 0, 0, 0);color: #ff0000;\" class=\"has-inline-color\">\uff13\u7a2e\u985e\u306e\u5b9f\u884c\u4f8b\u3092\u78ba\u8a8d\u305b\u305a\u306b<\/mark>\u63d0\u51fa<\/strong>\u3057\u3066\u3057\u307e\u3063\u3066\u3044\u308b\uff0e <br> \u25a0 <strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-strong-blue-color\">\u51fa\u529b\u3055\u308c\u308b\u5206\u6570\u306e\u5206\u5b50\u304c\u5b9f\u884c\u4f8b\u3068\u306f\u9055\u3063\u3066\u3044\u308b<\/mark><\/strong>\uff0e <br> \u25a0 <strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-strong-blue-color\">\u30a4\u30f3\u30c7\u30f3\u30c8\u306b\u4e0d\u5099<\/mark><\/strong>\u304c\u3042\u308b\uff08<a href=\"https:\/\/se.cite.ehime-u.ac.jp\/jp\/lecture\/prog\/vscode-%e4%b8%8a%e3%81%a7%e3%82%a4%e3%83%b3%e3%83%87%e3%83%b3%e3%83%88%e3%82%92%e8%87%aa%e5%8b%95%e3%81%a7%e6%8f%83%e3%81%88%e3%82%8b%e6%96%b9%e6%b3%95\/\" target=\"_blank\" rel=\"noreferrer noopener\">VSCode \u4e0a\u3067\u30a4\u30f3\u30c7\u30f3\u30c8\u3092\u81ea\u52d5\u3067\u63c3\u3048\u308b\u4f5c\u696d<\/a>\u3092\u3084\u3063\u3066\u3044\u306a\u3044\uff09\uff0e<\/p>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-black-color has-css-opacity has-black-background-color has-background is-style-wide\"\/>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<p class=\"has-text-align-right wp-block-paragraph\"><strong>\u30df\u30b9\u304c\u7121\u3044\u3053\u3068\u3092\u78ba\u8a8d\u3057\u305f\u3089<\/strong>\u6b21\u306e\u554f\u984c\u3078 \u2192 [ <a href=\"https:\/\/se.cite.ehime-u.ac.jp\/jp\/lecture\/prog\/practice-advance\/p14\/p1402a\/\">\u7df4\u7fd22 (p1402a.c)<\/a> ]<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u7df4\u7fd2 1\uff08\u63d0\u51fa\u30d7\u30ed\u30b0\u30e9\u30e0\u540d\uff1ap1401a.c\uff09 \u307e\u305a\uff0c\u3053\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\uff08p1401a.c\uff09\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u306a\u3055\u3044\uff0ep1401a.c \u3067\u306f\u300c2 \u306e\u5e73\u65b9\u6839\uff08\uff09\u300d\u3092\u6574\u6570\u306e\u6bd4 n\/d \u3067\u8fd1\u4f3c\u3057\u3088\u3046\u3068\u3057\u3066\u3044\u308b\uff0e\u5177\u4f53\u7684\u306b\u306f\uff0c\u5206\u6bcd\u306b\u76f8\u5f53 <a class=\"more-link\" href=\"https:\/\/se.cite.ehime-u.ac.jp\/jp\/lecture\/prog\/practice-advance\/p14\/p1401a\/\">&#8230; more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":10793,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-10795","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/wp-json\/wp\/v2\/pages\/10795","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/wp-json\/wp\/v2\/comments?post=10795"}],"version-history":[{"count":18,"href":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/wp-json\/wp\/v2\/pages\/10795\/revisions"}],"predecessor-version":[{"id":12860,"href":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/wp-json\/wp\/v2\/pages\/10795\/revisions\/12860"}],"up":[{"embeddable":true,"href":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/wp-json\/wp\/v2\/pages\/10793"}],"wp:attachment":[{"href":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/wp-json\/wp\/v2\/media?parent=10795"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}