{"id":815,"date":"2013-06-11T00:10:34","date_gmt":"2013-06-10T15:10:34","guid":{"rendered":"http:\/\/www.roundown.net\/nyushi\/?p=815"},"modified":"2021-09-09T07:12:49","modified_gmt":"2021-09-08T22:12:49","slug":"osr201302","status":"publish","type":"post","link":"https:\/\/www.roundown.net\/nyushi\/osr201302\/","title":{"rendered":"\u962a\u5927\u7406\u7cfb2013\uff1a\u7b2c2\u554f"},"content":{"rendered":"<hr \/>\n<p>\u4e0d\u7b49\u5f0f\r\n\\[\r\n1 \\leqq \\left| |x|-2 \\right| +\\left| |y|-2 \\right| \\leqq 3 \\ .\r\n\\]\r\n\u306e\u8868\u3059\u9818\u57df\u3092 \\(xy\\) \u5e73\u9762\u4e0a\u306b\u56f3\u793a\u305b\u3088.<\/p>\r\n<hr \/>\r\n<!--more-->\r\n<h2>\u3010 \u89e3 \u7b54 \u3011<\/h2>\r\n<p>\\(F(x,y) = \\left| |x|-2 \\right| +\\left| |y|-2 \\right|\\) \u3068\u304a\u304d, \\(1 \\leqq F(x,y) \\leqq 3\\) \u306e\u793a\u3059\u9818\u57df\u3092 \\(R\\) \u3068\u304a\u304f\u3068\r\n\\[\r\nF( -x , y ) = F( x , -y ) = F(x,y) \\ .\r\n\\]\r\n\u306a\u306e\u3067, \u300c\u9818\u57df \\(R\\) \u306f \\(x\\) \u8ef8\u3068 \\(y\\) \u8ef8\u306b\u3064\u3044\u3066\u5bfe\u79f0\u3067\u3042\u308b. \u300d... [1]\r\n\u3053\u3053\u3067, \\(x \\geqq 0\\) , \\(y \\geqq 0\\) \u306e\u5834\u5408\u306b\u3064\u3044\u3066\u8003\u3048\u308b.<br \/>\r\n\\(G(x,y) = |x-2|+|y-2|\\) \u3068\u304a\u304d, \\(1 \\leqq G(x,y) \\leqq 3\\) \u306e\u793a\u3059\u9818\u57df\u3092 \\(R'\\) \u3068\u304a\u304f\u3068\r\n\\[\r\nG( 4-x , y ) = G( x , 4-y ) = G(x,y) \\ .\r\n\\]\r\n\u306a\u306e\u3067, \u300c\u9818\u57df \\(R'\\) \u306f\u76f4\u7dda \\(x = 2\\) , \u76f4\u7dda \\(y = 2\\) \u306b\u3064\u3044\u3066\u5bfe\u79f0\u3067\u3042\u308b. \u300d... [2]\r\n\u3055\u3089\u306b, \\(x \\geqq 2\\) , \\(y \\geqq 2\\) \u306e\u5834\u5408\u306b\u3064\u3044\u3066\u8003\u3048\u308b\u3068,\r\n\\[\\begin{align}\r\n1 \\leqq (x-2)+(y-2) & \\leqq 3 \\\\\r\n\\text{\u2234} \\quad 5-x \\leqq y & \\leqq 7-x \\quad ... [3] \\ .\r\n\\end{align}\\]\r\n[3] \u306e\u793a\u3059\u9818\u57df\u306f\u4e0b\u56f3\u659c\u7dda\u90e8\uff08\u5883\u754c\u542b\u3080\uff09.<\/p>\r\n<img decoding=\"async\" src=\"\/\/www.roundown.net\/nyushi\/wp-content\/uploads\/osaka_r_2013_02_01.png\" alt=\"osaka_r_2013_02_01\" class=\"aligncenter size-ful\" \/>\r\n[2] \u3088\u308a, \u9818\u57df \\(R'\\) \u306f\u4e0b\u56f3\u659c\u7dda\u90e8\uff08\u5883\u754c\u542b\u3080\uff09.<\/p>\r\n<img decoding=\"async\" src=\"\/\/www.roundown.net\/nyushi\/wp-content\/uploads\/osaka_r_2013_02_02.png\" alt=\"osaka_r_2013_02_02\"  class=\"aligncenter size-full\" \/>\r\n<p>\u3088\u3063\u3066, [1] \u3088\u308a, \u6c42\u3081\u308b\u9818\u57df \\(R\\) \u306f\u4e0b\u56f3\u659c\u7dda\u90e8\uff08\u5883\u754c\u542b\u3080\uff09.<\/p>\r\n<img decoding=\"async\" src=\"\/\/www.roundown.net\/nyushi\/wp-content\/uploads\/osaka_r_2013_02_03.png\" alt=\"osaka_r_2013_02_03\" class=\"aligncenter size-full\" \/>\r\n","protected":false},"excerpt":{"rendered":"\u4e0d\u7b49\u5f0f \\[ 1 \\leqq \\left| |x|-2 \\right| +\\left| |y|-2 \\right| \\leqq 3 \\ . \\] \u306e\u8868\u3059\u9818\u57df\u3092 \\(xy\\) \u5e73\u9762\u4e0a\u306b\u56f3\u793a\u305b\u3088.","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[90],"tags":[142,111],"class_list":["post-815","post","type-post","status-publish","format-standard","hentry","category-osaka_r_2013","tag-osaka_r","tag-111"],"_links":{"self":[{"href":"https:\/\/www.roundown.net\/nyushi\/wp-json\/wp\/v2\/posts\/815","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.roundown.net\/nyushi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.roundown.net\/nyushi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.roundown.net\/nyushi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.roundown.net\/nyushi\/wp-json\/wp\/v2\/comments?post=815"}],"version-history":[{"count":0,"href":"https:\/\/www.roundown.net\/nyushi\/wp-json\/wp\/v2\/posts\/815\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.roundown.net\/nyushi\/wp-json\/wp\/v2\/media?parent=815"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.roundown.net\/nyushi\/wp-json\/wp\/v2\/categories?post=815"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.roundown.net\/nyushi\/wp-json\/wp\/v2\/tags?post=815"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}