{"id":65,"date":"2010-06-01T00:00:23","date_gmt":"2010-05-31T15:00:23","guid":{"rendered":"http:\/\/math.co.jp\/blog\/?p=65"},"modified":"2011-01-07T13:30:34","modified_gmt":"2011-01-07T04:30:34","slug":"%e8%bb%8c%e8%b7%a1%e3%81%ae%e6%96%b9%e7%a8%8b%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/math.co.jp\/blog\/?p=65","title":{"rendered":"\u8ecc\u8de1\u306e\u65b9\u7a0b\u5f0f?"},"content":{"rendered":"<p>4\u6708\u306e\u672b\u306b\u9ad8\u68213\u5e74\u751f\u304c\u3042\u308b\u554f\u984c\u96c6\u3092\u3082\u3063\u3066\u304d\u307e\u3057\u305f\u3002\u305f\u3076\u3093\u3001\u304b\u306a\u308a\u591a\u304f\u306e\u53d7\u9a13\u751f\u304c\u4f7f\u3063\u3066\u3044\u308b\u554f\u984c\u96c6\u3067\u3059\u3002\u3053\u306e\u554f\u984c\u96c6\u304c\u4f55\u306a\u306e\u304b\u306f twitter \u4e0a\u306eDM\u3067\u306e\u307f\u304a\u77e5\u3089\u305b\u3057\u307e\u3059\u3002\u30e1\u30fc\u30eb\u3067\u306f\u7b54\u3048\u307e\u305b\u3093\u3002<br \/>\n\u307e\u305a\u3001\u305d\u306e\u751f\u5f92\u306e\u8cea\u554f\u306e\u5185\u5bb9\u3092\u8aac\u660e\u3057\u307e\u3057\u3087\u3046\u3002\u8a71\u3092\u7c21\u5358\u306b\u3059\u308b\u305f\u3081\u306b\u554f\u984c\u3092\u7c21\u5358\u306b\u3057\u3066\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u8ecc\u8de1\u304c y=x (0\u2266x\u22661) \u3067\u8868\u3055\u308c\u308b\u56f3\u5f62\u306b\u306a\u308b\u554f\u984c\u304c\u3042\u308a\u307e\u3057\u305f\u3002(\u5b9f\u969b\u306f\u653e\u7269\u7dda\u306e\u4e00\u90e8\u3067\u3057\u305f)<br \/>\n\u3053\u306e\u554f\u984c\u96c6\u306f\u5b9f\u969b\u306e\u5165\u8a66\u554f\u984c\u304c\u300c\u8ecc\u8de1\u3092\u6c42\u3081\u3088\u300d\u3067\u3042\u3063\u305f\u306e\u306b\u5bfe\u3057\u3001\u308f\u3056\u308f\u3056<br \/>\n\u300c\u8ecc\u8de1\u306e\u65b9\u7a0b\u5f0f\u3092\u6c42\u3081\u3088\u300d<br \/>\n\u3068\u5909\u66f4\u3057\u51fa\u984c\u3057\u307e\u3057\u305f\u3002\u305d\u3053\u3067\u3001\u305d\u306e\u89e3\u7b54\u306b\u306f<br \/>\ny=x<br \/>\n\u3068\u3042\u3063\u305f\u306e\u3067\u3059\u3002\u751f\u5f92\u306f\u3001\u7bc4\u56f2\u306f\u66f8\u304b\u306a\u304f\u3066\u3088\u3044\u306e\u304b\u3068\u8cea\u554f\u3057\u305f\u306e\u3067\u3001\u79c1\u306f\u305d\u306e\u3068\u304d\u306f\u300c\u7bc4\u56f2\u3082\u66f8\u3044\u3066\u304a\u3044\u305f\u65b9\u304c\u3088\u3044\u300d\u3068\u7b54\u3048\u307e\u3057\u305f\u3002<br \/>\n\u3059\u308b\u3068\u751f\u5f92\u306f\u300c\u3068\u3044\u3046\u3053\u3068\u306f\u3001\u3053\u306e\u554f\u984c\u96c6\u306e\u89e3\u7b54\u306f\u307e\u3061\u304c\u3063\u3066\u3044\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u306d\u300d\u3068\u8a00\u3046\u306e\u3067\u300c\u305d\u3046\u3060\u300d\u3068\u7b54\u3048\u307e\u3057\u305f\u3002<br \/>\n\u3053\u306e\u3053\u3068\u3092\u6570\u65e5\u524d\u306b twitter  \u4e0a\u3067\u66f8\u3044\u3066\u3044\u305f\u3089\u3001\u305d\u308c\u3092\u805e\u3044\u3066\u3053\u306e\u554f\u984c\u96c6\u306e\u89e3\u7b54\u304c\u5fc3\u914d\u306b\u306a\u3063\u305f\u53d7\u9a13\u751f\u304c\u4f55\u4eba\u304b\u3044\u3066\u3001\u79c1\u306e\u3068\u3053\u308d\u306b\u554f\u3044\u5408\u308f\u305b\u3092\u3057\u3066\u304d\u307e\u3057\u305f\u3002\u79c1\u306f\u540c\u3058\u8fd4\u4e8b\u3092\u3059\u308b\u3068\u3001\u305d\u306e \u3046\u3061\u306e1\u4eba\u306f\u305d\u306e\u554f\u984c\u96c6\u3092\u51fa\u3057\u3066\u3044\u308b\u51fa\u7248\u793e\u306b\u554f\u3044\u5408\u308f\u305b\u3092\u3057\u305f\u3088\u3046\u3067\u3059\u3002\u3059\u308b\u3068\u3001\u51fa\u7248\u793e\u304b\u3089\u306e\u8fd4\u4e8b\u306f<br \/>\n\u300c\u8ecc\u8de1\u3092\u6c42\u3081\u3088\u3067\u306f\u306a\u304f\u3001\u8ecc\u8de1\u306e\u300e\u65b9\u7a0b\u5f0f\u300f\u3092\u6c42\u3081\u3088\u3067\u3042\u308b\u304b\u3089\u3001\u7bc4\u56f2\u307e\u3067\u7b54\u3048\u308b\u5fc5\u8981\u306f\u306a\u304f\u3001\u8ecc\u8de1\u3092\u542b\u3093\u3067\u3042\u308b\u65b9\u7a0b\u5f0f\u3092\u7b54\u3048\u308c\u3070\u3088\u3044\u300d<br \/>\n\u3068\u3044\u3046\u3082\u306e\u3067\u3057\u305f\u3002\u3060\u304b\u3089\u3001\u9593\u9055\u3063\u3066\u3044\u306a\u3044\u3001\u3053\u308c\u3067\u3044\u3044\u3093\u3060\u3068\u3044\u3046\u3082\u306e\u3067\u3057\u305f\u3002(\u4ee5\u4e0b\u3001\u3053\u306e\u53d7\u9a13\u751f\u306e\u8a71\u3092\u4fe1\u3058\u305f\u5834\u5408\u3068\u3044\u3046\u4eee\u5b9a\u304c\u3064\u304d\u307e\u3059\u3002)<br \/>\n\u79c1\u306f\u3001\u300c\u8ecc\u8de1\u306e\u65b9\u7a0b\u5f0f\u300d\u306e\u3053\u306e\u3088\u3046\u306a\u5b9a\u7fa9\u3092\u59cb\u3081\u3066\u805e\u304d\u307e\u3057\u305f\u3002\u300c\u8ecc\u8de1\u306e\u65b9\u7a0b\u5f0f\u300d\u3068\u306f\u300c\u8ecc\u8de1\u3092\u542b\u3080\u56f3\u5f62\u306e\u65b9\u7a0b\u5f0f\u300d\u3068\u3044\u3046\u3053\u3068\u3060\u3068\u3044\u3046\u306e\u3067\u3059\u3002<br \/>\n\u5999\u306a\u5b9a\u7fa9\u3067\u3059\u3002\u3068\u3066\u3082\u6570\u5b66\u7684\u306a\u5b9a\u7fa9\u3068\u306f\u601d\u3048\u307e\u305b\u3093\u3002\u4f8b\u3048\u3070\u3001<\/p>\n<ul>\n<li>\u4f8b1<br \/>\n\u8ecc\u8de1\u304c y=x (0\u2266x\u22661) \u306e\u5834\u5408\u3001\u8ecc\u8de1\u306e\u65b9\u7a0b\u5f0f\u3092\u7b54\u3048\u3088\u3068\u3042\u308c\u3070\u3001<br \/>\n(1) y=x\u3000(2) y^2=x^2\u3000(3) (x-y)f(x,y)=0<br \/>\n\u306f\u3059\u3079\u3066\u3088\u3044\u306e\u304b\u3002<\/li>\n<li>\u4f8b2<br \/>\n\u8ecc\u8de1\u304c\u534a\u5186 y=(1-x^2)^(1\/2) \u306e\u5834\u5408\u3001\u8ecc\u8de1\u306e\u65b9\u7a0b\u5f0f\u3092\u7b54\u3048\u3088\u3068\u3042\u308c\u3070\u3001<br \/>\nx^2+y^2=1<br \/>\n\u3067\u3082\u3088\u3044\u306e\u304b\u3002<\/li>\n<li>\u4f8b3<br \/>\n\u8ecc\u8de1\u306e\u65b9\u7a0b\u5f0f\u3092\u6c42\u3081\u3088\u306e\u554f\u3044\u306b\u5bfe\u3057\u30010x=0 (\u5e73\u9762\u5168\u4f53\u306b\u306a\u308b) \u3068\u66f8\u3051\u3070\u3064\u306d\u306b\u25cb\u3092\u3082\u3089\u3048\u308b\u306e\u304b\u3002<\/li>\n<\/ul>\n<p>\u3068\u3044\u3046\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u305d\u3082\u305d\u3082\u3001\u3053\u306e\u3088\u3046\u306a\u3042\u3044\u307e\u3044\u306a\u3082\u306e\u306f\u6570\u5b66\u306e\u5b9a\u7fa9\u306b\u306a\u308b\u306f\u305a\u304c\u3042\u308a\u307e\u305b\u3093\u3002\u304a\u305d\u3089\u304f\u3001\u305d\u306e\u554f\u984c\u96c6\u72ec\u7279\u306e\u5b9a\u7fa9\u306a\u306e\u3067\u3057\u3087\u3046\u3002<br \/>\n\u5ff5\u306e\u305f\u3081\u3001\u79c1\u306f\u307e\u308f\u308a\u306e\u4eba\u306b\u805e\u3044\u3066\u307f\u307e\u3057\u305f\u3002\u4e00\u90e8\u3001\u500b\u6027\u7684\u306a\u5b9a\u7fa9\u3092\u3059\u308b\u4eba\u3082\u3044\u307e\u3057\u305f\u304c\u3001\u5927\u534a\u306f\u4e0a\u306e\u51fa\u7248\u793e\u306e\u5b9a\u7fa9\u304c\u7406\u89e3\u3067\u304d\u306a\u3044\u3068\u3044\u3046\u3082\u306e\u3067\u3057\u305f\u3002\u305d\u3057\u3066\u3001\u305d\u3082\u305d\u3082\u305d\u306e\u3088\u3046\u306a\u5834\u5408\u306b\u300c\u8ecc\u8de1\u306e\u65b9\u7a0b\u5f0f\u3092\u6c42\u3081\u3088\u300d\u306a\u3069\u3068\u66f8\u304b\u306a\u3044\u3068\u3044\u3046\u306e\u3067\u3059\u3002<br \/>\n\u5165\u8a66\u554f\u984c\u306b\u306f\u3001\u300c\u8ecc\u8de1\u306f\u3042\u308b\u5186\u306e\u4e00\u90e8\u3067\u3042\u308b\u304c\u3001\u305d\u306e\u5186\u306e\u65b9\u7a0b\u5f0f\u3092\u6c42\u3081\u3088\u3002\u300d\u3068\u3044\u3046\u3082\u306e\u306a\u3089\u3042\u308a\u307e\u3059\u3002\u3067\u3059\u304c\u3001\u72ec\u81ea(?)\u306b\u300c\u8ecc\u8de1\u306e\u65b9\u7a0b\u5f0f\u3092\u6c42\u3081\u3088\u300d\u3068\u308f\u3056\u308f\u3056\u554f\u984c\u6587\u3092\u4ee3\u3048\u308b\u3068\u3044\u3046\u306e\u306f\u3001\u6570\u5b66\u3092\u77e5\u3089\u306a\u3044\u4eba\u306e\u3059\u308b\u3053\u3068\u3067\u3057\u3087\u3046\u3002<br \/>\n\u540c\u3058\u4e88\u5099\u6821\u306e\u5148\u751f\u304cK\u587e\u306e\u30c6\u30ad\u30b9\u30c8\u3082\u8abf\u3079\u3066\u304f\u308c\u307e\u3057\u305f\u304c\u3001K\u587e\u306e\u30c6\u30ad\u30b9\u30c8\u306b\u3082\u300c\u8ecc\u8de1\u306e\u65b9\u7a0b\u5f0f\u300d\u306a\u3069\u3068\u3044\u3046\u8a00\u8449\u306f\u306a\u3044\u3088\u3046\u3067\u3059\u3002\u79c1\u306f\u3001\u53d7\u9a13\u696d\u754c\u306e\u5e74\u914d\u306e\u4eba \u306b\u3082\u591a\u304f\u5c0b\u306d\u3066\u307f\u307e\u3057\u305f\u3002\u3059\u308b\u3068\u3001\u307f\u306a\u3055\u3093\u304c\u305d\u308d\u3063\u3066\u300c\u660e\u3089\u304b\u306b\u51fa\u7248\u793e\u304c\u304a\u304b\u3057\u3044\u300d\u3068\u8a00\u3063\u3066\u304a\u308a\u3001\u3068\u304f\u306bN\u5ca1\u6c0f\u306f\u6b21\u306e\u3088\u3046\u306b\u8fd4\u7b54\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n<p>(\u5f15\u7528)<br \/>\n&gt;\u304a\u5c0b\u306d\u306e\u4ef6\u3001(\u51fa\u7248\u793e\u540d) \u306e\u8aa4\u308a\u306f\u660e\u3089\u304b\u3067\u3057\u3087\u3046\u3002<br \/>\n&gt;\u305d\u3082\u305d\u3082<br \/>\n&gt;&gt; \u300c\u8ecc\u8de1\u306e\u65b9\u7a0b\u5f0f\u3092\u6c42\u3081\u3088\u300d<br \/>\n&gt; \u2191\u3053\u306e\u51fa\u984c\u304c\u7b4b\u60aa\u3067\u3059\u3002<br \/>\n&gt;\u6700\u521d\u306e\u767a\u60f3\u304c\u60aa\u3044\u306e\u3067\u3001\u5f8c\u306f\u4f55\u3092\u3084\u3063\u3066\u3082\u3059\u3079\u3066\u7121\u99c4\u3001\u3068<br \/>\n&gt;\u3044\u3046\u306e\u304c\u5c0f\u751f\u306e\u7acb\u3061\u5834\u3067\u3059\u3002<br \/>\n&gt;<br \/>\n&gt;f(x,y)=0 \u306e\u5f62\u3092\u3057\u305f\u8ecc\u8de1\u306e\u5fc5\u8981\u6761\u4ef6\u306e\u4e00\u3064\u3092\u6c42\u3081\u3088\u3001\u306a<br \/>\n&gt;\u3089\u3001\u8a00\u3044\u5f35\u308b\u306e\u3082\u7121\u7406\u3067\u306f\u306a\u3044\u3068\u601d\u3044\u307e\u3059\u304c\u3002<br \/>\n(\u5f15\u7528\u7d42\u308f\u308a)<\/p>\n<p>\u7d50\u5c40\u3001\u5358\u306a\u308b\u9593\u9055\u3044\u3001\u60aa\u5909\u66f4\u3067\u306f\u306a\u304f\u3001\u300c\u9593\u9055\u3044\u3092\u8a8d\u3081\u305f\u304f\u306a\u3044\u3068\u3044\u3046\u59ff\u52e2\u300d\u3068\u3001\u300c\u52dd\u624b\u306b\u81ea\u5206\u52dd\u624b\u306a\u7528\u8a9e\u3092\u5b9a\u7fa9\u3057\u3066\u3057\u307e\u3046\u6a2a\u66b4\u3076\u308a\u300d\u304c\u554f\u984c\u306a\u306e\u3060\u3068\u601d\u3063\u3066\u3044\u307e\u3059\u3002<br \/>\n\u305f\u3060\u3001\u3053\u306e\u554f\u984c\u96c6\u306f\u3068\u3044\u3046\u3088\u308a\u306f\u3001\u3053\u306e\u51fa\u7248\u793e\u306f\u591a\u304f\u306e\u53d7\u9a13\u751f\u306b\u652f\u6301\u3055\u308c\u3066\u3044\u308b\u3088\u3046\u3067\u3001\u79c1\u3001\u304a\u3088\u3073\u79c1\u4ee5\u5916\u306e\u591a\u304f\u306e\u6570\u5b66\u306e\u6559\u80b2\u8005\u9054\u304c\u305d\u308c\u4ee5\u5916\u306b\u3082\u3053\u306e\u554f\u984c\u96c6\u306e \u3088\u304f\u306a\u3044\u70b9\u3092\u6307\u6458\u3057\u3066\u3082\u53d7\u9a13\u751f\u306e\u591a\u304f\u306f\u3001\u300c\u3053\u306e\u51fa\u7248\u793e\u304c\u9593\u9055\u3046\u306f\u305a\u306f\u306a\u3044\u300d\u3068\u601d\u3063\u3066\u3057\u307e\u3046\u3088\u3046\u3067\u3001\u3044\u3064\u3082\u82e6\u52b4\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u4ee5\u4e0a\u306e\u8a71\u306f\u3001\u590f\u306e\u6559\u54e1\u5411\u3051\u306e\u30bb\u30df\u30ca\u30fc\u3067\u3082\u8a71\u984c\u306b\u3059\u308b\u4e88\u5b9a\u3067\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>4\u6708\u306e\u672b\u306b\u9ad8\u68213\u5e74\u751f\u304c\u3042\u308b\u554f\u984c\u96c6\u3092\u3082\u3063\u3066\u304d\u307e\u3057\u305f\u3002\u305f\u3076\u3093\u3001\u304b\u306a\u308a\u591a\u304f\u306e\u53d7\u9a13\u751f\u304c\u4f7f\u3063\u3066\u3044\u308b\u554f\u984c\u96c6\u3067\u3059\u3002\u3053\u306e\u554f\u984c\u96c6\u304c\u4f55\u306a\u306e\u304b\u306f twitter \u4e0a\u306eDM\u3067\u306e\u307f\u304a\u77e5\u3089\u305b\u3057\u307e\u3059\u3002\u30e1\u30fc\u30eb\u3067\u306f\u7b54\u3048\u307e\u305b\u3093\u3002 \u307e\u305a\u3001\u305d\u306e\u751f\u5f92\u306e\u8cea\u554f\u306e\u5185\u5bb9 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-65","post","type-post","status-publish","format-standard","hentry","category-4"],"_links":{"self":[{"href":"https:\/\/math.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/65","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/math.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/math.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/math.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/math.co.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=65"}],"version-history":[{"count":1,"href":"https:\/\/math.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/65\/revisions"}],"predecessor-version":[{"id":66,"href":"https:\/\/math.co.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/65\/revisions\/66"}],"wp:attachment":[{"href":"https:\/\/math.co.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=65"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/math.co.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=65"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/math.co.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=65"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}